697319056 has 40 divisors (see below), whose sum is σ = 1634895360. Its totient is φ = 281270784.

The previous prime is 697319047. The next prime is 697319069. The reversal of 697319056 is 650913796.

It is a super-2 number, since 2×697319056² = 972507731721462272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 697318997 and 697319015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181216 + ... + 185023.

It is an arithmetic number, because the mean of its divisors is an integer number (40872384).

Almost surely, 2^697319056 is an apocalyptic number.

It is an amenable number.

697319056 is an abundant number, since it is smaller than the sum of its proper divisors (937576304).

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

697319056 is a wasteful number, since it uses less digits than its factorization.

697319056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366271 (or 366265 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 46.

The square root of 697319056 is about 26406.7994274202. The cubic root of 697319056 is about 886.7690177763.

It can be divided in two parts, 69731 and 9056, that added together give a palindrome (78787).

The spelling of 697319056 in words is "six hundred ninety-seven million, three hundred nineteen thousand, fifty-six".