27620980 has 24 divisors (see below), whose sum is σ = 58550688. Its totient is φ = 10944288.

The previous prime is 27620977. The next prime is 27621019. The reversal of 27620980 is 8902672.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4314 + ... + 8593.

It is an arithmetic number, because the mean of its divisors is an integer number (2439612).

Almost surely, 2^27620980 is an apocalyptic number.

27620980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27620980 is an abundant number, since it is smaller than the sum of its proper divisors (30929708).

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

27620980 is a wasteful number, since it uses less digits than its factorization.

27620980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13023 (or 13021 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 27620980 is about 5255.5665726922. The cubic root of 27620980 is about 302.2825156243.

The spelling of 27620980 in words is "twenty-seven million, six hundred twenty thousand, nine hundred eighty".