28790464 has 14 divisors (see below), whose sum is σ = 57131204. Its totient is φ = 14395200.

The previous prime is 28790449. The next prime is 28790471. The reversal of 28790464 is 46409782.

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 as a sum of consecutive naturals, namely, 224862 + ... + 224989.

Almost surely, 2^28790464 is an apocalyptic number.

It is an amenable number.

28790464 is a deficient number, since it is larger than the sum of its proper divisors (28340740).

28790464 is an equidigital number, since it uses as much as digits as its factorization.

28790464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449863 (or 449853 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 28790464 is about 5365.6746080992. The cubic root of 28790464 is about 306.4899380804.

The spelling of 28790464 in words is "twenty-eight million, seven hundred ninety thousand, four hundred sixty-four".