27957222 has 24 divisors (see below), whose sum is σ = 61307064. Its totient is φ = 9206304.

The previous prime is 27957221. The next prime is 27957229. The reversal of 27957222 is 22275972.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27957221) 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, 7863 + ... + 10850.

It is an arithmetic number, because the mean of its divisors is an integer number (2554461).

Almost surely, 2^27957222 is an apocalyptic number.

27957222 is an abundant number, since it is smaller than the sum of its proper divisors (33349842).

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

27957222 is a wasteful number, since it uses less digits than its factorization.

27957222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18804 (or 18801 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 27957222 is about 5287.4589360108. The cubic root of 27957222 is about 303.5041764590.

The spelling of 27957222 in words is "twenty-seven million, nine hundred fifty-seven thousand, two hundred twenty-two".