28951504 has 40 divisors (see below), whose sum is σ = 57674880. Its totient is φ = 14074368.

The previous prime is 28951471. The next prime is 28951519. The reversal of 28951504 is 40515982.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 28951504.

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 7 ways as a sum of consecutive naturals, for example, 121017 + ... + 121255.

It is an arithmetic number, because the mean of its divisors is an integer number (1441872).

Almost surely, 2^28951504 is an apocalyptic number.

It is an amenable number.

28951504 is a deficient number, since it is larger than the sum of its proper divisors (28723376).

28951504 is a wasteful number, since it uses less digits than its factorization.

28951504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 28951504 is about 5380.6601825427. The cubic root of 28951504 is about 307.0603283069.

The spelling of 28951504 in words is "twenty-eight million, nine hundred fifty-one thousand, five hundred four".