28902628 has 12 divisors (see below), whose sum is σ = 52778880. Its totient is φ = 13822952.

The previous prime is 28902619. The next prime is 28902673. The reversal of 28902628 is 82620982.

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 3 ways as a sum of consecutive naturals, for example, 156988 + ... + 157171.

It is an arithmetic number, because the mean of its divisors is an integer number (4398240).

Almost surely, 2^28902628 is an apocalyptic number.

It is an amenable number.

28902628 is a deficient number, since it is larger than the sum of its proper divisors (23876252).

28902628 is a wasteful number, since it uses less digits than its factorization.

28902628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314186 (or 314184 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 28902628 is about 5376.1164421913. The cubic root of 28902628 is about 306.8874376460.

The spelling of 28902628 in words is "twenty-eight million, nine hundred two thousand, six hundred twenty-eight".