28865708 has 24 divisors (see below), whose sum is σ = 52581312. Its totient is φ = 13854464.

The previous prime is 28865663. The next prime is 28865741. The reversal of 28865708 is 80756882.

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, 8516 + ... + 11412.

It is an arithmetic number, because the mean of its divisors is an integer number (2190888).

Almost surely, 2^28865708 is an apocalyptic number.

It is an amenable number.

28865708 is a deficient number, since it is larger than the sum of its proper divisors (23715604).

28865708 is a wasteful number, since it uses less digits than its factorization.

28865708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001 (or 2999 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 44.

The square root of 28865708 is about 5372.6816395539. The cubic root of 28865708 is about 306.7567100638.

The spelling of 28865708 in words is "twenty-eight million, eight hundred sixty-five thousand, seven hundred eight".