697375636 has 6 divisors (see below), whose sum is σ = 1220407370. Its totient is φ = 348687816.

The previous prime is 697375589. The next prime is 697375661. The reversal of 697375636 is 636573796.

It can be written as a sum of positive squares in only one way, i.e., 351787536 + 345588100 = 18756^2 + 18590^2 .

It is a congruent number.

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, 87171951 + ... + 87171958.

Almost surely, 2^697375636 is an apocalyptic number.

It is an amenable number.

697375636 is a deficient number, since it is larger than the sum of its proper divisors (523031734).

697375636 is a wasteful number, since it uses less digits than its factorization.

697375636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174343913 (or 174343911 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 52.

The square root of 697375636 is about 26407.8707206772. The cubic root of 697375636 is about 886.7930010752.

The spelling of 697375636 in words is "six hundred ninety-seven million, three hundred seventy-five thousand, six hundred thirty-six".