27506990 has 16 divisors (see below), whose sum is σ = 56585952. Its totient is φ = 9430944.

The previous prime is 27506981. The next prime is 27507031. The reversal of 27506990 is 9960572.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196409 + ... + 196548.

It is an arithmetic number, because the mean of its divisors is an integer number (3536622).

Almost surely, 2^27506990 is an apocalyptic number.

27506990 is an abundant number, since it is smaller than the sum of its proper divisors (29078962).

27506990 is a wasteful number, since it uses less digits than its factorization.

27506990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392971.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 27506990 is about 5244.7106688549. The cubic root of 27506990 is about 301.8661087988.

The spelling of 27506990 in words is "twenty-seven million, five hundred six thousand, nine hundred ninety".