28746824 has 8 divisors (see below), whose sum is σ = 53900310. Its totient is φ = 14373408.

The previous prime is 28746811. The next prime is 28746869. The reversal of 28746824 is 42864782.

It can be written as a sum of positive squares in only one way, i.e., 16144324 + 12602500 = 4018^2 + 3550^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1796669 + ... + 1796684.

Almost surely, 2^28746824 is an apocalyptic number.

It is an amenable number.

28746824 is a deficient number, since it is larger than the sum of its proper divisors (25153486).

28746824 is a wasteful number, since it uses less digits than its factorization.

28746824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3593359 (or 3593355 counting only the distinct ones).

The product of its digits is 172032, while the sum is 41.

The square root of 28746824 is about 5361.6064756750. The cubic root of 28746824 is about 306.3350026991.

The spelling of 28746824 in words is "twenty-eight million, seven hundred forty-six thousand, eight hundred twenty-four".