64716832 has 12 divisors (see below), whose sum is σ = 127411326. Its totient is φ = 32358400.

The previous prime is 64716803. The next prime is 64716833. The reversal of 64716832 is 23861746.

It can be written as a sum of positive squares in only one way, i.e., 59536656 + 5180176 = 7716^2 + 2276^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64716791 and 64716800.

It is not an unprimeable number, because it can be changed into a prime (64716833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011169 + ... + 1011232.

Almost surely, 2^64716832 is an apocalyptic number.

It is an amenable number.

64716832 is a deficient number, since it is larger than the sum of its proper divisors (62694494).

64716832 is a wasteful number, since it uses less digits than its factorization.

64716832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022411 (or 2022403 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 64716832 is about 8044.6772464779. The cubic root of 64716832 is about 401.4878588284.

The spelling of 64716832 in words is "sixty-four million, seven hundred sixteen thousand, eight hundred thirty-two".