2891879 has 8 divisors (see below), whose sum is σ = 2991120. Its totient is φ = 2794176.

The previous prime is 2891831. The next prime is 2891891. The reversal of 2891879 is 9781982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2891879 is a prime.

It is a super-3 number, since 3×2891879³ = 72554041214974633317, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2891899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4379 + ... + 4995.

It is an arithmetic number, because the mean of its divisors is an integer number (373890).

2^2891879 is an apocalyptic number.

2891879 is a deficient number, since it is larger than the sum of its proper divisors (99241).

2891879 is a wasteful number, since it uses less digits than its factorization.

2891879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769.

The product of its digits is 72576, while the sum is 44.

The square root of 2891879 is about 1700.5525572590. The cubic root of 2891879 is about 142.4710765141.

The spelling of 2891879 in words is "two million, eight hundred ninety-one thousand, eight hundred seventy-nine".