697638412 has 6 divisors (see below), whose sum is σ = 1220867228. Its totient is φ = 348819204.

The previous prime is 697638391. The next prime is 697638457. The reversal of 697638412 is 214836796.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 87204798 + ... + 87204805.

Almost surely, 2^697638412 is an apocalyptic number.

It is an amenable number.

697638412 is a deficient number, since it is larger than the sum of its proper divisors (523228816).

697638412 is a wasteful number, since it uses less digits than its factorization.

697638412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174409607 (or 174409605 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 697638412 is about 26412.8455869488. The cubic root of 697638412 is about 886.9043703493.

The spelling of 697638412 in words is "six hundred ninety-seven million, six hundred thirty-eight thousand, four hundred twelve".