28634572 has 12 divisors (see below), whose sum is σ = 50221080. Its totient is φ = 14285696.

The previous prime is 28634569. The next prime is 28634581. The reversal of 28634572 is 27543682.

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, 5797 + ... + 9532.

It is an arithmetic number, because the mean of its divisors is an integer number (4185090).

Almost surely, 2^28634572 is an apocalyptic number.

It is an amenable number.

28634572 is a deficient number, since it is larger than the sum of its proper divisors (21586508).

28634572 is a wasteful number, since it uses less digits than its factorization.

28634572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15800 (or 15798 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 28634572 is about 5351.1281053625. The cubic root of 28634572 is about 305.9357519577.

The spelling of 28634572 in words is "twenty-eight million, six hundred thirty-four thousand, five hundred seventy-two".