28633874 has 16 divisors (see below), whose sum is σ = 45852480. Its totient is φ = 13371120.

The previous prime is 28633853. The next prime is 28633877. The reversal of 28633874 is 47833682.

It is not an unprimeable number, because it can be changed into a prime (28633877) by changing a digit.

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, 2609 + ... + 8004.

It is an arithmetic number, because the mean of its divisors is an integer number (2865780).

Almost surely, 2^28633874 is an apocalyptic number.

28633874 is a deficient number, since it is larger than the sum of its proper divisors (17218606).

28633874 is a wasteful number, since it uses less digits than its factorization.

28633874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10705.

The product of its digits is 193536, while the sum is 41.

The square root of 28633874 is about 5351.0628850725. The cubic root of 28633874 is about 305.9332660945.

The spelling of 28633874 in words is "twenty-eight million, six hundred thirty-three thousand, eight hundred seventy-four".