28824736 has 12 divisors (see below), whose sum is σ = 56748762. Its totient is φ = 14412352.

The previous prime is 28824721. The next prime is 28824751. The reversal of 28824736 is 63742882.

It is an interprime number because it is at equal distance from previous prime (28824721) and next prime (28824751).

It can be written as a sum of positive squares in only one way, i.e., 28515600 + 309136 = 5340^2 + 556^2 .

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 as a sum of consecutive naturals, namely, 450355 + ... + 450418.

Almost surely, 2^28824736 is an apocalyptic number.

It is an amenable number.

28824736 is a deficient number, since it is larger than the sum of its proper divisors (27924026).

28824736 is an equidigital number, since it uses as much as digits as its factorization.

28824736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900783 (or 900775 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 28824736 is about 5368.8672920831. The cubic root of 28824736 is about 306.6115044659.

The spelling of 28824736 in words is "twenty-eight million, eight hundred twenty-four thousand, seven hundred thirty-six".