27493564 has 12 divisors (see below), whose sum is σ = 54987184. Its totient is φ = 11782944.

The previous prime is 27493549. The next prime is 27493567. The reversal of 27493564 is 46539472.

It is a happy number.

27493564 is an admirable number.

It is a super-2 number, since 2×27493564² = 1511792122844192, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27493567) 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, 490929 + ... + 490984.

Almost surely, 2^27493564 is an apocalyptic number.

It is an amenable number.

27493564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

27493564 is a wasteful number, since it uses less digits than its factorization.

27493564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981924 (or 981922 counting only the distinct ones).

The product of its digits is 181440, while the sum is 40.

The square root of 27493564 is about 5243.4305564201. The cubic root of 27493564 is about 301.8169877821.

The spelling of 27493564 in words is "twenty-seven million, four hundred ninety-three thousand, five hundred sixty-four".