706388 has 6 divisors (see below), whose sum is σ = 1236186. Its totient is φ = 353192.

The previous prime is 706373. The next prime is 706403. The reversal of 706388 is 883607.

706388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (706373) and next prime (706403).

It can be written as a sum of positive squares in only one way, i.e., 611524 + 94864 = 782^2 + 308^2 .

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 706388.

It is an unprimeable number.

706388 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 as a sum of consecutive naturals, namely, 88295 + ... + 88302.

It is an arithmetic number, because the mean of its divisors is an integer number (206031).

2⁷⁰⁶³⁸⁸ is an apocalyptic number.

It is an amenable number.

706388 is a deficient number, since it is larger than the sum of its proper divisors (529798).

706388 is a wasteful number, since it uses less digits than its factorization.

706388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176601 (or 176599 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 706388 is about 840.4689167364. The cubic root of 706388 is about 89.0596746616.

The spelling of 706388 in words is "seven hundred six thousand, three hundred eighty-eight".