27039381 has 16 divisors (see below), whose sum is σ = 36982656. Its totient is φ = 17566016.

The previous prime is 27039373. The next prime is 27039403. The reversal of 27039381 is 18393072.

It is a cyclic number.

It is not a de Polignac number, because 27039381 - 2³ = 27039373 is a prime.

It is a super-2 number, since 2×27039381² = 1462256249726322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27039301) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 27016 + ... + 27998.

It is an arithmetic number, because the mean of its divisors is an integer number (2311416).

Almost surely, 2^27039381 is an apocalyptic number.

It is an amenable number.

27039381 is a deficient number, since it is larger than the sum of its proper divisors (9943275).

27039381 is a wasteful number, since it uses less digits than its factorization.

27039381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 27039381 is about 5199.9404804286. The cubic root of 27039381 is about 300.1457847002.

The spelling of 27039381 in words is "twenty-seven million, thirty-nine thousand, three hundred eighty-one".