28973492 has 12 divisors (see below), whose sum is σ = 50917440. Its totient is φ = 14425656.

The previous prime is 28973489. The next prime is 28973501. The reversal of 28973492 is 29437982.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14198 + ... + 16109.

It is an arithmetic number, because the mean of its divisors is an integer number (4243120).

Almost surely, 2^28973492 is an apocalyptic number.

It is an amenable number.

28973492 is a deficient number, since it is larger than the sum of its proper divisors (21943948).

28973492 is a wasteful number, since it uses less digits than its factorization.

28973492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30550 (or 30548 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 28973492 is about 5382.7030384371. The cubic root of 28973492 is about 307.1380437166.

The spelling of 28973492 in words is "twenty-eight million, nine hundred seventy-three thousand, four hundred ninety-two".