27161992 has 32 divisors (see below), whose sum is σ = 59834880. Its totient is φ = 11396160.

The previous prime is 27161989. The next prime is 27161993. The reversal of 27161992 is 29916172.

It is not an unprimeable number, because it can be changed into a prime (27161993) 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 7 ways as a sum of consecutive naturals, for example, 10728 + ... + 13015.

It is an arithmetic number, because the mean of its divisors is an integer number (1869840).

Almost surely, 2^27161992 is an apocalyptic number.

27161992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27161992 is an abundant number, since it is smaller than the sum of its proper divisors (32672888).

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

27161992 is a wasteful number, since it uses less digits than its factorization.

27161992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23773 (or 23769 counting only the distinct ones).

The product of its digits is 13608, while the sum is 37.

The square root of 27161992 is about 5211.7167996736. The cubic root of 27161992 is about 300.5987744724.

The spelling of 27161992 in words is "twenty-seven million, one hundred sixty-one thousand, nine hundred ninety-two".