27872166 has 32 divisors (see below), whose sum is σ = 63970560. Its totient is φ = 7930656.

The previous prime is 27872153. The next prime is 27872167. The reversal of 27872166 is 66127872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27872167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10065 + ... + 12531.

It is an arithmetic number, because the mean of its divisors is an integer number (1999080).

Almost surely, 2^27872166 is an apocalyptic number.

27872166 is an abundant number, since it is smaller than the sum of its proper divisors (36098394).

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

27872166 is a wasteful number, since it uses less digits than its factorization.

27872166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748.

The product of its digits is 56448, while the sum is 39.

The square root of 27872166 is about 5279.4096260851. The cubic root of 27872166 is about 303.1960738997.

The spelling of 27872166 in words is "twenty-seven million, eight hundred seventy-two thousand, one hundred sixty-six".