28528902 has 16 divisors (see below), whose sum is σ = 63397680. Its totient is φ = 9509616.

The previous prime is 28528891. The next prime is 28528939. The reversal of 28528902 is 20982582.

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 7 ways as a sum of consecutive naturals, for example, 264103 + ... + 264210.

It is an arithmetic number, because the mean of its divisors is an integer number (3962355).

Almost surely, 2^28528902 is an apocalyptic number.

28528902 is an abundant number, since it is smaller than the sum of its proper divisors (34868778).

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

28528902 is a wasteful number, since it uses less digits than its factorization.

28528902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528324 (or 528318 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 28528902 is about 5341.2453604005. The cubic root of 28528902 is about 305.5589570873.

The spelling of 28528902 in words is "twenty-eight million, five hundred twenty-eight thousand, nine hundred two".