696258664 has 16 divisors (see below), whose sum is σ = 1382278500. Its totient is φ = 327651072.

The previous prime is 696258649. The next prime is 696258671. The reversal of 696258664 is 466852696.

It can be written as a sum of positive squares in 2 ways, for example, as 582836164 + 113422500 = 24142^2 + 10650^2 .

It is a super-2 number, since 2×696258664² = 969552254390129792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2559639 + ... + 2559910.

Almost surely, 2^696258664 is an apocalyptic number.

It is an amenable number.

696258664 is a deficient number, since it is larger than the sum of its proper divisors (686019836).

696258664 is a wasteful number, since it uses less digits than its factorization.

696258664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5119572 (or 5119568 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 52.

The square root of 696258664 is about 26386.7137779603. The cubic root of 696258664 is about 886.3192954637.

The spelling of 696258664 in words is "six hundred ninety-six million, two hundred fifty-eight thousand, six hundred sixty-four".