27217939 has 12 divisors (see below), whose sum is σ = 31670704. Its totient is φ = 22913712.

The previous prime is 27217933. The next prime is 27217951. The reversal of 27217939 is 93971272.

It is not a de Polignac number, because 27217939 - 2⁷ = 27217811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27217933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23809 + ... + 24925.

Almost surely, 2^27217939 is an apocalyptic number.

27217939 is a deficient number, since it is larger than the sum of its proper divisors (4452765).

27217939 is an equidigital number, since it uses as much as digits as its factorization.

27217939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242 (or 1183 counting only the distinct ones).

The product of its digits is 47628, while the sum is 40.

The square root of 27217939 is about 5217.0814638071. The cubic root of 27217939 is about 300.8050193620.

The spelling of 27217939 in words is "twenty-seven million, two hundred seventeen thousand, nine hundred thirty-nine".