2879399515 has 4 divisors (see below), whose sum is σ = 3455279424. Its totient is φ = 2303519608.

The previous prime is 2879399489. The next prime is 2879399539. The reversal of 2879399515 is 5159939782.

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

It is a cyclic number.

It is not a de Polignac number, because 2879399515 - 2¹⁵ = 2879366747 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2879399515.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287939947 + ... + 287939956.

It is an arithmetic number, because the mean of its divisors is an integer number (863819856).

Almost surely, 2^2879399515 is an apocalyptic number.

2879399515 is a deficient number, since it is larger than the sum of its proper divisors (575879909).

2879399515 is an equidigital number, since it uses as much as digits as its factorization.

2879399515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575879908.

The product of its digits is 6123600, while the sum is 58.

The square root of 2879399515 is about 53660.0364796745. The cubic root of 2879399515 is about 1422.6584324656.

The spelling of 2879399515 in words is "two billion, eight hundred seventy-nine million, three hundred ninety-nine thousand, five hundred fifteen".