64528712 has 32 divisors (see below), whose sum is σ = 131760000. Its totient is φ = 29510208.

The previous prime is 64528699. The next prime is 64528721. The reversal of 64528712 is 21782546.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2912 + ... + 11727.

It is an arithmetic number, because the mean of its divisors is an integer number (4117500).

Almost surely, 2^64528712 is an apocalyptic number.

It is an amenable number.

64528712 is an abundant number, since it is smaller than the sum of its proper divisors (67231288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64528712 is a wasteful number, since it uses less digits than its factorization.

64528712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14693 (or 14689 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 64528712 is about 8032.9765342618. The cubic root of 64528712 is about 401.0984640140.

The spelling of 64528712 in words is "sixty-four million, five hundred twenty-eight thousand, seven hundred twelve".