28671576 has 24 divisors (see below), whose sum is σ = 71744580. Its totient is φ = 9548448.

The previous prime is 28671557. The next prime is 28671611. The reversal of 28671576 is 67517682.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25686 + ... + 26778.

Almost surely, 2^28671576 is an apocalyptic number.

It is an amenable number.

28671576 is an abundant number, since it is smaller than the sum of its proper divisors (43073004).

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

28671576 is an equidigital number, since it uses as much as digits as its factorization.

28671576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195 (or 1098 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 28671576 is about 5354.5845777240. The cubic root of 28671576 is about 306.0674805255.

The spelling of 28671576 in words is "twenty-eight million, six hundred seventy-one thousand, five hundred seventy-six".