27690492 has 12 divisors (see below), whose sum is σ = 64611176. Its totient is φ = 9230160.

The previous prime is 27690491. The next prime is 27690499. The reversal of 27690492 is 29409672.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 27690492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27690491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1153759 + ... + 1153782.

Almost surely, 2^27690492 is an apocalyptic number.

It is an amenable number.

27690492 is an abundant number, since it is smaller than the sum of its proper divisors (36920684).

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

27690492 is a wasteful number, since it uses less digits than its factorization.

27690492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307548 (or 2307546 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 27690492 is about 5262.1755957018. The cubic root of 27690492 is about 302.5358817259.

It can be divided in two parts, 27690 and 492, that added together give a palindrome (28182).

The spelling of 27690492 in words is "twenty-seven million, six hundred ninety thousand, four hundred ninety-two".