28525764 has 24 divisors (see below), whose sum is σ = 70063840. Its totient is φ = 9008064.

The previous prime is 28525753. The next prime is 28525787. The reversal of 28525764 is 46752582.

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, 62329 + ... + 62784.

Almost surely, 2^28525764 is an apocalyptic number.

It is an amenable number.

28525764 is an abundant number, since it is smaller than the sum of its proper divisors (41538076).

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

28525764 is a wasteful number, since it uses less digits than its factorization.

28525764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125139 (or 125137 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 28525764 is about 5340.9516006045. The cubic root of 28525764 is about 305.5477534880.

The spelling of 28525764 in words is "twenty-eight million, five hundred twenty-five thousand, seven hundred sixty-four".