64712572 has 24 divisors (see below), whose sum is σ = 117477360. Its totient is φ = 31153920.

The previous prime is 64712567. The next prime is 64712579. The reversal of 64712572 is 27521746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64712579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65748 + ... + 66724.

It is an arithmetic number, because the mean of its divisors is an integer number (4894890).

Almost surely, 2^64712572 is an apocalyptic number.

It is an amenable number.

64712572 is a deficient number, since it is larger than the sum of its proper divisors (52764788).

64712572 is a wasteful number, since it uses less digits than its factorization.

64712572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581 (or 1579 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 64712572 is about 8044.4124707775. The cubic root of 64712572 is about 401.4790492923.

The spelling of 64712572 in words is "sixty-four million, seven hundred twelve thousand, five hundred seventy-two".