64517372 has 12 divisors (see below), whose sum is σ = 115531416. Its totient is φ = 31508400.

The previous prime is 64517371. The next prime is 64517393. The reversal of 64517372 is 27371546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64517371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187379 + ... + 187722.

It is an arithmetic number, because the mean of its divisors is an integer number (9627618).

Almost surely, 2^64517372 is an apocalyptic number.

It is an amenable number.

64517372 is a deficient number, since it is larger than the sum of its proper divisors (51014044).

64517372 is a wasteful number, since it uses less digits than its factorization.

64517372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375148 (or 375146 counting only the distinct ones).

The product of its digits is 35280, while the sum is 35.

The square root of 64517372 is about 8032.2706627703. The cubic root of 64517372 is about 401.0749668611.

The spelling of 64517372 in words is "sixty-four million, five hundred seventeen thousand, three hundred seventy-two".