27137980 has 12 divisors (see below), whose sum is σ = 56989800. Its totient is φ = 10855184.

The previous prime is 27137977. The next prime is 27138029. The reversal of 27137980 is 8973172.

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, 678430 + ... + 678469.

It is an arithmetic number, because the mean of its divisors is an integer number (4749150).

Almost surely, 2^27137980 is an apocalyptic number.

27137980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27137980 is an abundant number, since it is smaller than the sum of its proper divisors (29851820).

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

27137980 is a wasteful number, since it uses less digits than its factorization.

27137980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356908 (or 1356906 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 27137980 is about 5209.4126348371. The cubic root of 27137980 is about 300.5101689707.

The spelling of 27137980 in words is "twenty-seven million, one hundred thirty-seven thousand, nine hundred eighty".