2979 has 6 divisors (see below), whose sum is σ = 4316. Its totient is φ = 1980.

The previous prime is 2971. The next prime is 2999. The reversal of 2979 is 9792.

It is not a de Polignac number, because 2979 - 2³ = 2971 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11 and base 14.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (2971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 157 + ... + 174.

2979 is a deficient number, since it is larger than the sum of its proper divisors (1337).

2979 is a wasteful number, since it uses less digits than its factorization.

2979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337 (or 334 counting only the distinct ones).

The product of its digits is 1134, while the sum is 27.

The square root of 2979 is about 54.5802161960. The cubic root of 2979 is about 14.3887643838.

The spelling of 2979 in words is "two thousand, nine hundred seventy-nine".