28594656 has 72 divisors (see below), whose sum is σ = 83243160. Its totient is φ = 9305856.

The previous prime is 28594637. The next prime is 28594661. The reversal of 28594656 is 65649582.

28594656 is a `hidden beast` number, since 2 + 8 + 594 + 6 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 11230 + ... + 13538.

It is an arithmetic number, because the mean of its divisors is an integer number (1156155).

Almost surely, 2^28594656 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 28594656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41621580).

28594656 is an abundant number, since it is smaller than the sum of its proper divisors (54648504).

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

28594656 is a wasteful number, since it uses less digits than its factorization.

28594656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368 (or 2357 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 28594656 is about 5347.3971238351. The cubic root of 28594656 is about 305.7935298194.

The spelling of 28594656 in words is "twenty-eight million, five hundred ninety-four thousand, six hundred fifty-six".