697916656 has 10 divisors (see below), whose sum is σ = 1352213552. Its totient is φ = 348958320.

The previous prime is 697916651. The next prime is 697916663. The reversal of 697916656 is 656619796.

697916656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 697916597 and 697916606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697916651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21809880 + ... + 21809911.

Almost surely, 2^697916656 is an apocalyptic number.

It is an amenable number.

697916656 is a deficient number, since it is larger than the sum of its proper divisors (654296896).

697916656 is a wasteful number, since it uses less digits than its factorization.

697916656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43619799 (or 43619793 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 55.

The square root of 697916656 is about 26418.1122716972. The cubic root of 697916656 is about 887.0222647651.

Subtracting from 697916656 its product of digits (3674160), we obtain a palindrome (694242496).

The spelling of 697916656 in words is "six hundred ninety-seven million, nine hundred sixteen thousand, six hundred fifty-six".