27129996 has 18 divisors (see below), whose sum is σ = 68578692. Its totient is φ = 9043320.

The previous prime is 27129983. The next prime is 27130007. The reversal of 27129996 is 69992172.

27129996 is a `hidden beast` number, since 271 + 299 + 96 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 376770 + ... + 376841.

Almost surely, 2^27129996 is an apocalyptic number.

It is an amenable number.

27129996 is an abundant number, since it is smaller than the sum of its proper divisors (41448696).

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

27129996 is a wasteful number, since it uses less digits than its factorization.

27129996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753621 (or 753616 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 27129996 is about 5208.6462732653. The cubic root of 27129996 is about 300.4806960264.

The spelling of 27129996 in words is "twenty-seven million, one hundred twenty-nine thousand, nine hundred ninety-six".