2879779 has 6 divisors (see below), whose sum is σ = 3350004. Its totient is φ = 2468340.

The previous prime is 2879771. The next prime is 2879791. The reversal of 2879779 is 9779782.

It is not a de Polignac number, because 2879779 - 2³ = 2879771 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 58771 = 2879779 / (2 + 8 + 7 + 9 + 7 + 7 + 9).

It is not an unprimeable number, because it can be changed into a prime (2879771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29337 + ... + 29434.

It is an arithmetic number, because the mean of its divisors is an integer number (558334).

2^2879779 is an apocalyptic number.

2879779 is a deficient number, since it is larger than the sum of its proper divisors (470225).

2879779 is an equidigital number, since it uses as much as digits as its factorization.

2879779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58785 (or 58778 counting only the distinct ones).

The product of its digits is 444528, while the sum is 49.

The square root of 2879779 is about 1696.9911608491. The cubic root of 2879779 is about 142.2720928577.

The spelling of 2879779 in words is "two million, eight hundred seventy-nine thousand, seven hundred seventy-nine".