697935897 has 12 divisors (see below), whose sum is σ = 1051961664. Its totient is φ = 445060440.

The previous prime is 697935877. The next prime is 697935977. The reversal of 697935897 is 798539796.

It is not a de Polignac number, because 697935897 - 2⁷ = 697935769 is a prime.

It is a super-2 number, since 2×697935897² = 974229032642389218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (697935877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1685629 + ... + 1686042.

It is an arithmetic number, because the mean of its divisors is an integer number (87663472).

Almost surely, 2^697935897 is an apocalyptic number.

It is an amenable number.

697935897 is a deficient number, since it is larger than the sum of its proper divisors (354025767).

697935897 is a wasteful number, since it uses less digits than its factorization.

697935897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371700 (or 3371697 counting only the distinct ones).

The product of its digits is 25719120, while the sum is 63.

The square root of 697935897 is about 26418.4764322245. The cubic root of 697935897 is about 887.0304161866.

The spelling of 697935897 in words is "six hundred ninety-seven million, nine hundred thirty-five thousand, eight hundred ninety-seven".