27164081 has 12 divisors (see below), whose sum is σ = 32974272. Its totient is φ = 22270248.

The previous prime is 27164077. The next prime is 27164083. The reversal of 27164081 is 18046172.

It is not a de Polignac number, because 27164081 - 2² = 27164077 is a prime.

It is a super-2 number, since 2×27164081² = 1475774593149122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (27164083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10925 + ... + 13178.

It is an arithmetic number, because the mean of its divisors is an integer number (2747856).

Almost surely, 2^27164081 is an apocalyptic number.

It is an amenable number.

27164081 is a deficient number, since it is larger than the sum of its proper divisors (5810191).

27164081 is a wasteful number, since it uses less digits than its factorization.

27164081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24140 (or 24133 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 27164081 is about 5211.9172096264. The cubic root of 27164081 is about 300.6064805191.

The spelling of 27164081 in words is "twenty-seven million, one hundred sixty-four thousand, eighty-one".