28087024 has 20 divisors (see below), whose sum is σ = 62192944. Its totient is φ = 12037248.

The previous prime is 28087021. The next prime is 28087049. The reversal of 28087024 is 42078082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28087021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125277 + ... + 125500.

Almost surely, 2^28087024 is an apocalyptic number.

It is an amenable number.

28087024 is an abundant number, since it is smaller than the sum of its proper divisors (34105920).

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

28087024 is a wasteful number, since it uses less digits than its factorization.

28087024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250792 (or 250786 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 28087024 is about 5299.7192378465. The cubic root of 28087024 is about 303.9731624508.

The spelling of 28087024 in words is "twenty-eight million, eighty-seven thousand, twenty-four".