27311994 has 48 divisors (see below), whose sum is σ = 63453312. Its totient is φ = 8468064.

The previous prime is 27311989. The next prime is 27312007. The reversal of 27311994 is 49911372.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14427 + ... + 16209.

It is an arithmetic number, because the mean of its divisors is an integer number (1321944).

Almost surely, 2^27311994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27311994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31726656).

27311994 is an abundant number, since it is smaller than the sum of its proper divisors (36141318).

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

27311994 is a wasteful number, since it uses less digits than its factorization.

27311994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851 (or 1848 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 27311994 is about 5226.0878293423. The cubic root of 27311994 is about 301.1511108303.

The spelling of 27311994 in words is "twenty-seven million, three hundred eleven thousand, nine hundred ninety-four".