2879789 has 4 divisors (see below), whose sum is σ = 3141600. Its totient is φ = 2617980.

The previous prime is 2879771. The next prime is 2879791. The reversal of 2879789 is 9879782.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2879789 - 2⁸ = 2879533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2879719) 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 3 ways as a sum of consecutive naturals, for example, 130889 + ... + 130910.

It is an arithmetic number, because the mean of its divisors is an integer number (785400).

2^2879789 is an apocalyptic number.

It is an amenable number.

2879789 is a deficient number, since it is larger than the sum of its proper divisors (261811).

2879789 is a wasteful number, since it uses less digits than its factorization.

2879789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261810.

The product of its digits is 508032, while the sum is 50.

The square root of 2879789 is about 1696.9941072379. The cubic root of 2879789 is about 142.2722575369.

The spelling of 2879789 in words is "two million, eight hundred seventy-nine thousand, seven hundred eighty-nine".