28014664 has 32 divisors (see below), whose sum is σ = 56016000. Its totient is φ = 13096512.

The previous prime is 28014659. The next prime is 28014689. The reversal of 28014664 is 46641082.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10842 + ... + 13174.

It is an arithmetic number, because the mean of its divisors is an integer number (1750500).

Almost surely, 2^28014664 is an apocalyptic number.

It is an amenable number.

28014664 is a deficient number, since it is larger than the sum of its proper divisors (28001336).

28014664 is a wasteful number, since it uses less digits than its factorization.

28014664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437 (or 2433 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 28014664 is about 5292.8880585178. Note that the first 3 decimals coincide. The cubic root of 28014664 is about 303.7118981037.

The spelling of 28014664 in words is "twenty-eight million, fourteen thousand, six hundred sixty-four".