28335868 has 24 divisors (see below), whose sum is σ = 54754560. Its totient is φ = 12723120.

The previous prime is 28335851. The next prime is 28335869. The reversal of 28335868 is 86853382.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28335869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228 + ... + 7531.

It is an arithmetic number, because the mean of its divisors is an integer number (2281440).

Almost surely, 2^28335868 is an apocalyptic number.

It is an amenable number.

28335868 is a deficient number, since it is larger than the sum of its proper divisors (26418692).

28335868 is a wasteful number, since it uses less digits than its factorization.

28335868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7857 (or 7855 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 28335868 is about 5323.1445593747. The cubic root of 28335868 is about 304.8682329680.

The spelling of 28335868 in words is "twenty-eight million, three hundred thirty-five thousand, eight hundred sixty-eight".