27906164 has 24 divisors (see below), whose sum is σ = 57374688. Its totient is φ = 11708640.

The previous prime is 27906161. The next prime is 27906167. The reversal of 27906164 is 46160972.

It is an interprime number because it is at equal distance from previous prime (27906161) and next prime (27906167).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27906161) 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, 23822 + ... + 24965.

It is an arithmetic number, because the mean of its divisors is an integer number (2390612).

Almost surely, 2^27906164 is an apocalyptic number.

It is an amenable number.

27906164 is an abundant number, since it is smaller than the sum of its proper divisors (29468524).

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

27906164 is a wasteful number, since it uses less digits than its factorization.

27906164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48815 (or 48813 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 27906164 is about 5282.6285123980. The cubic root of 27906164 is about 303.3193016359.

The spelling of 27906164 in words is "twenty-seven million, nine hundred six thousand, one hundred sixty-four".