28675520 has 28 divisors (see below), whose sum is σ = 68284344. Its totient is φ = 11470080.

The previous prime is 28675487. The next prime is 28675553. The reversal of 28675520 is 2557682.

It is an interprime number because it is at equal distance from previous prime (28675487) and next prime (28675553).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44486 + ... + 45125.

Almost surely, 2^28675520 is an apocalyptic number.

28675520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28675520 is an abundant number, since it is smaller than the sum of its proper divisors (39608824).

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

28675520 is an equidigital number, since it uses as much as digits as its factorization.

28675520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89628 (or 89618 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 28675520 is about 5354.9528475982. The cubic root of 28675520 is about 306.0815138757.

The spelling of 28675520 in words is "twenty-eight million, six hundred seventy-five thousand, five hundred twenty".