27979339 has 12 divisors (see below), whose sum is σ = 29503656. Its totient is φ = 26530592.

The previous prime is 27979337. The next prime is 27979379. The reversal of 27979339 is 93397972.

It is not a de Polignac number, because 27979339 - 2¹ = 27979337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27979292 and 27979301.

It is not an unprimeable number, because it can be changed into a prime (27979337) 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, 119967 + ... + 120199.

It is an arithmetic number, because the mean of its divisors is an integer number (2458638).

Almost surely, 2^27979339 is an apocalyptic number.

27979339 is a deficient number, since it is larger than the sum of its proper divisors (1524317).

27979339 is a wasteful number, since it uses less digits than its factorization.

27979339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 483 counting only the distinct ones).

The product of its digits is 642978, while the sum is 49.

The square root of 27979339 is about 5289.5499808585. The cubic root of 27979339 is about 303.5841895654.

The spelling of 27979339 in words is "twenty-seven million, nine hundred seventy-nine thousand, three hundred thirty-nine".