28502964 has 72 divisors (see below), whose sum is σ = 86690240. Its totient is φ = 7713792.

The previous prime is 28502941. The next prime is 28502989. The reversal of 28502964 is 46920582.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1812 + ... + 7764.

Almost surely, 2^28502964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28502964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43345120).

28502964 is an abundant number, since it is smaller than the sum of its proper divisors (58187276).

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

28502964 is a wasteful number, since it uses less digits than its factorization.

28502964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5989 (or 5984 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 28502964 is about 5338.8167228329. The cubic root of 28502964 is about 305.4663259796.

The spelling of 28502964 in words is "twenty-eight million, five hundred two thousand, nine hundred sixty-four".