27931296 has 48 divisors (see below), whose sum is σ = 73912608. Its totient is φ = 9235200.

The previous prime is 27931283. The next prime is 27931307. The reversal of 27931296 is 69213972.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11466 + ... + 13686.

It is an arithmetic number, because the mean of its divisors is an integer number (1539846).

Almost surely, 2^27931296 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 27931296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36956304).

27931296 is an abundant number, since it is smaller than the sum of its proper divisors (45981312).

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

27931296 is a wasteful number, since it uses less digits than its factorization.

27931296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365 (or 2357 counting only the distinct ones).

The product of its digits is 40824, while the sum is 39.

The square root of 27931296 is about 5285.0067171197. The cubic root of 27931296 is about 303.4103297140.

The spelling of 27931296 in words is "twenty-seven million, nine hundred thirty-one thousand, two hundred ninety-six".