28704268 has 12 divisors (see below), whose sum is σ = 50317960. Its totient is φ = 14327712.

The previous prime is 28704259. The next prime is 28704271. The reversal of 28704268 is 86240782.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3321 + ... + 8272.

Almost surely, 2^28704268 is an apocalyptic number.

It is an amenable number.

28704268 is a deficient number, since it is larger than the sum of its proper divisors (21613692).

28704268 is a wasteful number, since it uses less digits than its factorization.

28704268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12216 (or 12214 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 28704268 is about 5357.6364191684. The cubic root of 28704268 is about 306.1837647678.

The spelling of 28704268 in words is "twenty-eight million, seven hundred four thousand, two hundred sixty-eight".