27394331 has 4 divisors (see below), whose sum is σ = 27665664. Its totient is φ = 27123000.

The previous prime is 27394313. The next prime is 27394337. The reversal of 27394331 is 13349372.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27394331 - 2⁶ = 27394267 is a prime.

It is a super-2 number, since 2×27394331² = 1500898741875122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27394337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135515 + ... + 135716.

It is an arithmetic number, because the mean of its divisors is an integer number (6916416).

Almost surely, 2^27394331 is an apocalyptic number.

27394331 is a deficient number, since it is larger than the sum of its proper divisors (271333).

27394331 is a wasteful number, since it uses less digits than its factorization.

27394331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271332.

The product of its digits is 13608, while the sum is 32.

The square root of 27394331 is about 5233.9593999190. The cubic root of 27394331 is about 301.4534322625.

The spelling of 27394331 in words is "twenty-seven million, three hundred ninety-four thousand, three hundred thirty-one".