27985090 has 16 divisors (see below), whose sum is σ = 57569472. Its totient is φ = 9594864.

The previous prime is 27985063. The next prime is 27985091. The reversal of 27985090 is 9058972.

It is not an unprimeable number, because it can be changed into a prime (27985091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199824 + ... + 199963.

It is an arithmetic number, because the mean of its divisors is an integer number (3598092).

Almost surely, 2^27985090 is an apocalyptic number.

27985090 is an abundant number, since it is smaller than the sum of its proper divisors (29584382).

27985090 is a wasteful number, since it uses less digits than its factorization.

27985090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399801.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 27985090 is about 5290.0935719513. The cubic root of 27985090 is about 303.6049881633.

The spelling of 27985090 in words is "twenty-seven million, nine hundred eighty-five thousand, ninety".