27087880 has 64 divisors (see below), whose sum is σ = 63504000. Its totient is φ = 10391040.

The previous prime is 27087877. The next prime is 27087887. The reversal of 27087880 is 8878072.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (27087887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136021 + ... + 136219.

It is an arithmetic number, because the mean of its divisors is an integer number (992250).

Almost surely, 2^27087880 is an apocalyptic number.

27087880 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 27087880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31752000).

27087880 is an abundant number, since it is smaller than the sum of its proper divisors (36416120).

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

27087880 is a wasteful number, since it uses less digits than its factorization.

27087880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 40.

The square root of 27087880 is about 5204.6018099370. The cubic root of 27087880 is about 300.3251289913.

The spelling of 27087880 in words is "twenty-seven million, eighty-seven thousand, eight hundred eighty".