27345980 has 12 divisors (see below), whose sum is σ = 57426600. Its totient is φ = 10938384.

The previous prime is 27345971. The next prime is 27345991. The reversal of 27345980 is 8954372.

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, 683630 + ... + 683669.

It is an arithmetic number, because the mean of its divisors is an integer number (4785550).

Almost surely, 2^27345980 is an apocalyptic number.

27345980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27345980 is an abundant number, since it is smaller than the sum of its proper divisors (30080620).

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

27345980 is a wasteful number, since it uses less digits than its factorization.

27345980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367308 (or 1367306 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 27345980 is about 5229.3383902746. The cubic root of 27345980 is about 301.2759726922.

The spelling of 27345980 in words is "twenty-seven million, three hundred forty-five thousand, nine hundred eighty".