686056914 has 12 divisors (see below), whose sum is σ = 1486456686. Its totient is φ = 228685632.

The previous prime is 686056859. The next prime is 686056919. The reversal of 686056914 is 419650686.

686056914 is a `hidden beast` number, since 6 + 86 + 0 + 569 + 1 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 535135689 + 150921225 = 23133^2 + 12285^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 686056914.

It is not an unprimeable number, because it can be changed into a prime (686056919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19057119 + ... + 19057154.

Almost surely, 2^686056914 is an apocalyptic number.

686056914 is an abundant number, since it is smaller than the sum of its proper divisors (800399772).

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

686056914 is a wasteful number, since it uses less digits than its factorization.

686056914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38114281 (or 38114278 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 686056914 is about 26192.6881781920. The cubic root of 686056914 is about 881.9691244379.

The spelling of 686056914 in words is "six hundred eighty-six million, fifty-six thousand, nine hundred fourteen".