27688090 has 16 divisors (see below), whose sum is σ = 52005888. Its totient is φ = 10593616.

The previous prime is 27688057. The next prime is 27688093. The reversal of 27688090 is 9088672.

It is not an unprimeable number, because it can be changed into a prime (27688093) 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, 59962 + ... + 60421.

It is an arithmetic number, because the mean of its divisors is an integer number (3250368).

Almost surely, 2^27688090 is an apocalyptic number.

27688090 is a deficient number, since it is larger than the sum of its proper divisors (24317798).

27688090 is a wasteful number, since it uses less digits than its factorization.

27688090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120413.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 27688090 is about 5261.9473581555. The cubic root of 27688090 is about 302.5271336907.

The spelling of 27688090 in words is "twenty-seven million, six hundred eighty-eight thousand, ninety".