27005992 has 64 divisors (see below), whose sum is σ = 58464000. Its totient is φ = 11591424.

The previous prime is 27005987. The next prime is 27006019. The reversal of 27005992 is 29950072.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156018 + ... + 156190.

It is an arithmetic number, because the mean of its divisors is an integer number (913500).

Almost surely, 2^27005992 is an apocalyptic number.

27005992 is the 3287-th heptagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27005992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29232000).

27005992 is an abundant number, since it is smaller than the sum of its proper divisors (31458008).

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

27005992 is a wasteful number, since it uses less digits than its factorization.

27005992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 27005992 is about 5196.7289711895. The cubic root of 27005992 is about 300.0221909511.

The spelling of 27005992 in words is "twenty-seven million, five thousand, nine hundred ninety-two".