28562634 has 12 divisors (see below), whose sum is σ = 61885746. Its totient is φ = 9520872.

The previous prime is 28562629. The next prime is 28562647. The reversal of 28562634 is 43626582.

28562634 is a `hidden beast` number, since 28 + 5 + 626 + 3 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19580625 + 8982009 = 4425^2 + 2997^2 .

It is a super-2 number, since 2×28562634² = 1631648122035912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 793389 + ... + 793424.

Almost surely, 2^28562634 is an apocalyptic number.

28562634 is an abundant number, since it is smaller than the sum of its proper divisors (33323112).

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

28562634 is a wasteful number, since it uses less digits than its factorization.

28562634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586821 (or 1586818 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 28562634 is about 5344.4021181045. The cubic root of 28562634 is about 305.6793385762.

The spelling of 28562634 in words is "twenty-eight million, five hundred sixty-two thousand, six hundred thirty-four".