28719364 has 24 divisors (see below), whose sum is σ = 52633728. Its totient is φ = 13685760.

The previous prime is 28719343. The next prime is 28719373. The reversal of 28719364 is 46391782.

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 7 ways as a sum of consecutive naturals, for example, 44484 + ... + 45124.

It is an arithmetic number, because the mean of its divisors is an integer number (2193072).

Almost surely, 2^28719364 is an apocalyptic number.

It is an amenable number.

28719364 is a deficient number, since it is larger than the sum of its proper divisors (23914364).

28719364 is a wasteful number, since it uses less digits than its factorization.

28719364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155 (or 1153 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 28719364 is about 5359.0450641882. The cubic root of 28719364 is about 306.2374308877.

The spelling of 28719364 in words is "twenty-eight million, seven hundred nineteen thousand, three hundred sixty-four".