28507796 has 24 divisors (see below), whose sum is σ = 51559200. Its totient is φ = 13783392.

The previous prime is 28507789. The next prime is 28507811. The reversal of 28507796 is 69770582.

It is a congruent number.

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, 17630 + ... + 19178.

It is an arithmetic number, because the mean of its divisors is an integer number (2148300).

Almost surely, 2^28507796 is an apocalyptic number.

It is an amenable number.

28507796 is a deficient number, since it is larger than the sum of its proper divisors (23051404).

28507796 is a wasteful number, since it uses less digits than its factorization.

28507796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703 (or 1701 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 28507796 is about 5339.2692383883. The cubic root of 28507796 is about 305.4835865224.

The spelling of 28507796 in words is "twenty-eight million, five hundred seven thousand, seven hundred ninety-six".