27643116 has 12 divisors (see below), whose sum is σ = 64500632. Its totient is φ = 9214368.

The previous prime is 27643087. The next prime is 27643169. The reversal of 27643116 is 61134672.

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

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151785 + ... + 1151808.

Almost surely, 2^27643116 is an apocalyptic number.

It is an amenable number.

27643116 is an abundant number, since it is smaller than the sum of its proper divisors (36857516).

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

27643116 is a wasteful number, since it uses less digits than its factorization.

27643116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303600 (or 2303598 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 27643116 is about 5257.6721084526. The cubic root of 27643116 is about 302.3632457920.

Adding to 27643116 its reverse (61134672), we get a palindrome (88777788).

The spelling of 27643116 in words is "twenty-seven million, six hundred forty-three thousand, one hundred sixteen".