2915979 has 24 divisors (see below), whose sum is σ = 4436880. Its totient is φ = 1700160.

The previous prime is 2915977. The next prime is 2915981. The reversal of 2915979 is 9795192.

It is an interprime number because it is at equal distance from previous prime (2915977) and next prime (2915981).

It is not a de Polignac number, because 2915979 - 2¹ = 2915977 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2915979.

It is not an unprimeable number, because it can be changed into a prime (2915977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10389 + ... + 10665.

It is an arithmetic number, because the mean of its divisors is an integer number (184870).

2^2915979 is an apocalyptic number.

2915979 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2915979 is a deficient number, since it is larger than the sum of its proper divisors (1520901).

2915979 is a wasteful number, since it uses less digits than its factorization.

2915979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 320 counting only the distinct ones).

The product of its digits is 51030, while the sum is 42.

The square root of 2915979 is about 1707.6237876066. The cubic root of 2915979 is about 142.8657517193.

It can be divided in two parts, 2 and 915979, that added together give a triangular number (915981 = T₁₃₅₃).

The spelling of 2915979 in words is "two million, nine hundred fifteen thousand, nine hundred seventy-nine".