27127980 has 96 divisors (see below), whose sum is σ = 92090880. Its totient is φ = 6575040.

The previous prime is 27127979. The next prime is 27128011. The reversal of 27127980 is 8972172.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3657 + ... + 8223.

It is an arithmetic number, because the mean of its divisors is an integer number (959280).

Almost surely, 2^27127980 is an apocalyptic number.

27127980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27127980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46045440).

27127980 is an abundant number, since it is smaller than the sum of its proper divisors (64962900).

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

27127980 is a wasteful number, since it uses less digits than its factorization.

27127980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4596 (or 4588 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 27127980 is about 5208.4527452978. The cubic root of 27127980 is about 300.4732530459.

The spelling of 27127980 in words is "twenty-seven million, one hundred twenty-seven thousand, nine hundred eighty".