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706986 = 232731181
BaseRepresentation
bin10101100100110101010
31022220210200
42230212222
5140110421
623053030
76003120
oct2544652
91286720
10706986
11443195
122a1176
131b9a47
14145910
15de726
hexac9aa

706986 has 48 divisors (see below), whose sum is σ = 1817088. Its totient is φ = 194400.

The previous prime is 706973. The next prime is 706987. The reversal of 706986 is 689607.

706986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 706986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706987) by changing a digit.

706986 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3816 + ... + 3996.

It is an arithmetic number, because the mean of its divisors is an integer number (37856).

2706986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 706986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (908544).

706986 is an abundant number, since it is smaller than the sum of its proper divisors (1110102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

706986 is a wasteful number, since it uses less digits than its factorization.

706986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 706986 is about 840.8245952635. The cubic root of 706986 is about 89.0847990332.

It can be divided in two parts, 70 and 6986, that added together give a square (7056 = 842).

The spelling of 706986 in words is "seven hundred six thousand, nine hundred eighty-six".

Divisors: 1 2 3 6 7 9 14 18 21 31 42 62 63 93 126 181 186 217 279 362 434 543 558 651 1086 1267 1302 1629 1953 2534 3258 3801 3906 5611 7602 11222 11403 16833 22806 33666 39277 50499 78554 100998 117831 235662 353493 706986