28000576 has 14 divisors (see below), whose sum is σ = 55563770. Its totient is φ = 14000256.

The previous prime is 28000571. The next prime is 28000597. The reversal of 28000576 is 67500082.

It can be written as a sum of positive squares in only one way, i.e., 24760576 + 3240000 = 4976^2 + 1800^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28000571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 218691 + ... + 218818.

Almost surely, 2^28000576 is an apocalyptic number.

It is an amenable number.

28000576 is a deficient number, since it is larger than the sum of its proper divisors (27563194).

28000576 is an equidigital number, since it uses as much as digits as its factorization.

28000576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437521 (or 437511 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 28000576 is about 5291.5570487334. The cubic root of 28000576 is about 303.6609794057.

The spelling of 28000576 in words is "twenty-eight million, five hundred seventy-six", and thus it is an aban number.