2439879 has 16 divisors (see below), whose sum is σ = 3555552. Its totient is φ = 1479168.

The previous prime is 2439839. The next prime is 2439881. The reversal of 2439879 is 9789342.

It is not a de Polignac number, because 2439879 - 2¹⁶ = 2374343 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 2439879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2439839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2419 + ... + 3275.

It is an arithmetic number, because the mean of its divisors is an integer number (222222).

2^2439879 is an apocalyptic number.

2439879 is a deficient number, since it is larger than the sum of its proper divisors (1115673).

2439879 is a wasteful number, since it uses less digits than its factorization.

2439879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946.

The product of its digits is 108864, while the sum is 42.

The square root of 2439879 is about 1562.0112035450. The cubic root of 2439879 is about 134.6240845283.

It can be divided in two parts, 24 and 39879, that added together give a triangular number (39903 = T₂₈₂).

The spelling of 2439879 in words is "two million, four hundred thirty-nine thousand, eight hundred seventy-nine".