27955992 has 64 divisors (see below), whose sum is σ = 74419200. Its totient is φ = 8726400.

The previous prime is 27955987. The next prime is 27955999. The reversal of 27955992 is 29955972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27955999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45753 + ... + 46359.

It is an arithmetic number, because the mean of its divisors is an integer number (1162800).

Almost surely, 2^27955992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27955992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37209600).

27955992 is an abundant number, since it is smaller than the sum of its proper divisors (46463208).

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

27955992 is a wasteful number, since it uses less digits than its factorization.

27955992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736 (or 732 counting only the distinct ones).

The product of its digits is 510300, while the sum is 48.

The square root of 27955992 is about 5287.3426217714. The cubic root of 27955992 is about 303.4997254253.

The spelling of 27955992 in words is "twenty-seven million, nine hundred fifty-five thousand, nine hundred ninety-two".