27261164 has 24 divisors (see below), whose sum is σ = 56894208. Its totient is φ = 11175120.

The previous prime is 27261151. The next prime is 27261203. The reversal of 27261164 is 46116272.

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 a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20522 + ... + 21809.

It is an arithmetic number, because the mean of its divisors is an integer number (2370592).

Almost surely, 2^27261164 is an apocalyptic number.

It is an amenable number.

27261164 is an abundant number, since it is smaller than the sum of its proper divisors (29633044).

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

27261164 is a wasteful number, since it uses less digits than its factorization.

27261164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42365 (or 42363 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 27261164 is about 5221.2224622209. Note that the first 3 decimals coincide. The cubic root of 27261164 is about 300.9641719956.

The spelling of 27261164 in words is "twenty-seven million, two hundred sixty-one thousand, one hundred sixty-four".