697031168 has 20 divisors (see below), whose sum is σ = 1392701970. Its totient is φ = 348515328.

The previous prime is 697031149. The next prime is 697031171. The reversal of 697031168 is 861130796.

It can be written as a sum of positive squares in only one way, i.e., 628605184 + 68425984 = 25072^2 + 8272^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680183 + ... + 681206.

Almost surely, 2^697031168 is an apocalyptic number.

It is an amenable number.

697031168 is a deficient number, since it is larger than the sum of its proper divisors (695670802).

697031168 is an equidigital number, since it uses as much as digits as its factorization.

697031168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361407 (or 1361391 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 697031168 is about 26401.3478443810. The cubic root of 697031168 is about 886.6469668552.

The spelling of 697031168 in words is "six hundred ninety-seven million, thirty-one thousand, one hundred sixty-eight".