686627046 has 96 divisors (see below), whose sum is σ = 1731944448. Its totient is φ = 192559680.

The previous prime is 686627033. The next prime is 686627063. The reversal of 686627046 is 640726686.

686627046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×686627046² = 942913400597372232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 686626992 and 686627010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2478660 + ... + 2478936.

It is an arithmetic number, because the mean of its divisors is an integer number (18041088).

Almost surely, 2^686627046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 686627046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (865972224).

686627046 is an abundant number, since it is smaller than the sum of its proper divisors (1045317402).

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

686627046 is a wasteful number, since it uses less digits than its factorization.

686627046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 686627046 is about 26203.5693370197. The cubic root of 686627046 is about 882.2133702548.

The spelling of 686627046 in words is "six hundred eighty-six million, six hundred twenty-seven thousand, forty-six".