68696464 has 20 divisors (see below), whose sum is σ = 133238620. Its totient is φ = 34312320.

The previous prime is 68696417. The next prime is 68696471. The reversal of 68696464 is 46469686.

It can be written as a sum of positive squares in 2 ways, for example, as 21086464 + 47610000 = 4592^2 + 6900^2 .

It is a super-2 number, since 2×68696464² = 9438408332206592, 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, 20542 + ... + 23650.

It is an arithmetic number, because the mean of its divisors is an integer number (6661931).

Almost surely, 2^68696464 is an apocalyptic number.

It is an amenable number.

68696464 is a deficient number, since it is larger than the sum of its proper divisors (64542156).

68696464 is a wasteful number, since it uses less digits than its factorization.

68696464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4498 (or 4492 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 49.

The square root of 68696464 is about 8288.3330048931. Note that the first 3 decimals coincide. The cubic root of 68696464 is about 409.5542726968.

The spelling of 68696464 in words is "sixty-eight million, six hundred ninety-six thousand, four hundred sixty-four".