28607552 has 28 divisors (see below), whose sum is σ = 57081420. Its totient is φ = 14224896.

The previous prime is 28607519. The next prime is 28607563. The reversal of 28607552 is 25570682.

It can be written as a sum of positive squares in 2 ways, for example, as 15241216 + 13366336 = 3904^2 + 3656^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11474 + ... + 13742.

Almost surely, 2^28607552 is an apocalyptic number.

It is an amenable number.

28607552 is a deficient number, since it is larger than the sum of its proper divisors (28473868).

28607552 is a wasteful number, since it uses less digits than its factorization.

28607552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2478 (or 2468 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 28607552 is about 5348.6028082108. The cubic root of 28607552 is about 305.8394931943.

The spelling of 28607552 in words is "twenty-eight million, six hundred seven thousand, five hundred fifty-two".