64528874 has 4 divisors (see below), whose sum is σ = 96793314. Its totient is φ = 32264436.

The previous prime is 64528873. The next prime is 64528879. The reversal of 64528874 is 47882546.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39778249 + 24750625 = 6307^2 + 4975^2 .

It is not an unprimeable number, because it can be changed into a prime (64528873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16132217 + ... + 16132220.

Almost surely, 2^64528874 is an apocalyptic number.

64528874 is a deficient number, since it is larger than the sum of its proper divisors (32264440).

64528874 is a wasteful number, since it uses less digits than its factorization.

64528874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32264439.

The product of its digits is 430080, while the sum is 44.

The square root of 64528874 is about 8032.9866176908. The cubic root of 64528874 is about 401.0987996677.

The spelling of 64528874 in words is "sixty-four million, five hundred twenty-eight thousand, eight hundred seventy-four".