28796724 has 36 divisors (see below), whose sum is σ = 79410240. Its totient is φ = 8726160.

The previous prime is 28796717. The next prime is 28796749. The reversal of 28796724 is 42769782.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 28796724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35964 + ... + 36755.

It is an arithmetic number, because the mean of its divisors is an integer number (2205840).

Almost surely, 2^28796724 is an apocalyptic number.

It is an amenable number.

28796724 is an abundant number, since it is smaller than the sum of its proper divisors (50613516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28796724 is a wasteful number, since it uses less digits than its factorization.

28796724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72740 (or 72735 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 28796724 is about 5366.2579140403. The cubic root of 28796724 is about 306.5121501570.

The spelling of 28796724 in words is "twenty-eight million, seven hundred ninety-six thousand, seven hundred twenty-four".