27039891 has 8 divisors (see below), whose sum is σ = 36458640. Its totient is φ = 17823872.

The previous prime is 27039871. The next prime is 27039913. The reversal of 27039891 is 19893072.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27039891 - 2⁷ = 27039763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27039811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50370 + ... + 50903.

It is an arithmetic number, because the mean of its divisors is an integer number (4557330).

Almost surely, 2^27039891 is an apocalyptic number.

27039891 is a deficient number, since it is larger than the sum of its proper divisors (9418749).

27039891 is a wasteful number, since it uses less digits than its factorization.

27039891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101365.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 27039891 is about 5199.9895192202. The cubic root of 27039891 is about 300.1476717427.

The spelling of 27039891 in words is "twenty-seven million, thirty-nine thousand, eight hundred ninety-one".