27029979 has 6 divisors (see below), whose sum is σ = 39043316. Its totient is φ = 18019980.

The previous prime is 27029969. The next prime is 27029993. The reversal of 27029979 is 97992072.

It is not a de Polignac number, because 27029979 - 2⁹ = 27029467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27029909) 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, 1501657 + ... + 1501674.

Almost surely, 2^27029979 is an apocalyptic number.

27029979 is a deficient number, since it is larger than the sum of its proper divisors (12013337).

27029979 is a wasteful number, since it uses less digits than its factorization.

27029979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003337 (or 3003334 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 27029979 is about 5199.0363530177. The cubic root of 27029979 is about 300.1109922640.

The spelling of 27029979 in words is "twenty-seven million, twenty-nine thousand, nine hundred seventy-nine".