2499879 has 4 divisors (see below), whose sum is σ = 3333176. Its totient is φ = 1666584.

The previous prime is 2499863. The next prime is 2499881. The reversal of 2499879 is 9789942.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2499879 - 2⁴ = 2499863 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2499859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416644 + ... + 416649.

It is an arithmetic number, because the mean of its divisors is an integer number (833294).

2^2499879 is an apocalyptic number.

2499879 is a deficient number, since it is larger than the sum of its proper divisors (833297).

2499879 is an equidigital number, since it uses as much as digits as its factorization.

2499879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833296.

The product of its digits is 326592, while the sum is 48.

The square root of 2499879 is about 1581.1005660615. The cubic root of 2499879 is about 135.7186911642.

The spelling of 2499879 in words is "two million, four hundred ninety-nine thousand, eight hundred seventy-nine".