28700164 has 24 divisors (see below), whose sum is σ = 51861600. Its totient is φ = 13888320.

The previous prime is 28700153. The next prime is 28700171. The reversal of 28700164 is 46100782.

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, 22167 + ... + 23425.

It is an arithmetic number, because the mean of its divisors is an integer number (2160900).

Almost surely, 2^28700164 is an apocalyptic number.

It is an amenable number.

28700164 is a deficient number, since it is larger than the sum of its proper divisors (23161436).

28700164 is a wasteful number, since it uses less digits than its factorization.

28700164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443 (or 1441 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 28700164 is about 5357.2534007642. The cubic root of 28700164 is about 306.1691718385.

The spelling of 28700164 in words is "twenty-eight million, seven hundred thousand, one hundred sixty-four".