28713008 has 20 divisors (see below), whose sum is σ = 56041800. Its totient is φ = 14250624.

The previous prime is 28713007. The next prime is 28713011. The reversal of 28713008 is 80031782.

It is not an unprimeable number, because it can be changed into a prime (28713007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4358 + ... + 8741.

It is an arithmetic number, because the mean of its divisors is an integer number (2802090).

Almost surely, 2^28713008 is an apocalyptic number.

It is an amenable number.

28713008 is a deficient number, since it is larger than the sum of its proper divisors (27328792).

28713008 is a wasteful number, since it uses less digits than its factorization.

28713008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13244 (or 13238 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 28713008 is about 5358.4520152746. The cubic root of 28713008 is about 306.2148376678.

The spelling of 28713008 in words is "twenty-eight million, seven hundred thirteen thousand, eight".