27945339 has 8 divisors (see below), whose sum is σ = 37340160. Its totient is φ = 18590376.

The previous prime is 27945329. The next prime is 27945341. The reversal of 27945339 is 93354972.

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

It is not a de Polignac number, because 27945339 - 2²⁰ = 26896763 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27945339.

It is not an unprimeable number, because it can be changed into a prime (27945319) 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, 8287 + ... + 11160.

It is an arithmetic number, because the mean of its divisors is an integer number (4667520).

Almost surely, 2^27945339 is an apocalyptic number.

27945339 is a deficient number, since it is larger than the sum of its proper divisors (9394821).

27945339 is a wasteful number, since it uses less digits than its factorization.

27945339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19929.

The product of its digits is 204120, while the sum is 42.

The square root of 27945339 is about 5286.3351199106. The cubic root of 27945339 is about 303.4611696678.

The spelling of 27945339 in words is "twenty-seven million, nine hundred forty-five thousand, three hundred thirty-nine".