28996375 has 32 divisors (see below), whose sum is σ = 39499200. Its totient is φ = 21168000.

The previous prime is 28996369. The next prime is 28996417. The reversal of 28996375 is 57369982.

It is not a de Polignac number, because 28996375 - 2²³ = 20607767 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68665 + ... + 69085.

It is an arithmetic number, because the mean of its divisors is an integer number (1234350).

Almost surely, 2^28996375 is an apocalyptic number.

28996375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28996375 is a deficient number, since it is larger than the sum of its proper divisors (10502825).

28996375 is a wasteful number, since it uses less digits than its factorization.

28996375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484 (or 474 counting only the distinct ones).

The product of its digits is 816480, while the sum is 49.

The square root of 28996375 is about 5384.8282238155. The cubic root of 28996375 is about 307.2188807151.

The spelling of 28996375 in words is "twenty-eight million, nine hundred ninety-six thousand, three hundred seventy-five".