27996318 has 24 divisors (see below), whose sum is σ = 69324528. Its totient is φ = 7998912.

The previous prime is 27996299. The next prime is 27996373. The reversal of 27996318 is 81369972.

27996318 is a `hidden beast` number, since 2 + 7 + 9 + 9 + 631 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 110971 + ... + 111222.

It is an arithmetic number, because the mean of its divisors is an integer number (2888522).

Almost surely, 2^27996318 is an apocalyptic number.

27996318 is an abundant number, since it is smaller than the sum of its proper divisors (41328210).

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

27996318 is a wasteful number, since it uses less digits than its factorization.

27996318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222208 (or 222205 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 27996318 is about 5291.1546943933. The cubic root of 27996318 is about 303.6455862224.

The spelling of 27996318 in words is "twenty-seven million, nine hundred ninety-six thousand, three hundred eighteen".