27707139 has 6 divisors (see below), whose sum is σ = 40021436. Its totient is φ = 18471420.

The previous prime is 27707123. The next prime is 27707153. The reversal of 27707139 is 93170772.

It is not a de Polignac number, because 27707139 - 2⁴ = 27707123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27707159) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1539277 + ... + 1539294.

Almost surely, 2^27707139 is an apocalyptic number.

27707139 is a deficient number, since it is larger than the sum of its proper divisors (12314297).

27707139 is a wasteful number, since it uses less digits than its factorization.

27707139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078577 (or 3078574 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 36.

The square root of 27707139 is about 5263.7571182569. The cubic root of 27707139 is about 302.5964958640.

The spelling of 27707139 in words is "twenty-seven million, seven hundred seven thousand, one hundred thirty-nine".