2321879 has 4 divisors (see below), whose sum is σ = 2653584. Its totient is φ = 1990176.

The previous prime is 2321863. The next prime is 2321881. The reversal of 2321879 is 9781232.

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 2321879 - 2⁴ = 2321863 is a prime.

It is a super-2 number, since 2×2321879² = 10782244181282, which contains 22 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 (2321899) 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, 165842 + ... + 165855.

It is an arithmetic number, because the mean of its divisors is an integer number (663396).

2^2321879 is an apocalyptic number.

2321879 is a deficient number, since it is larger than the sum of its proper divisors (331705).

2321879 is an equidigital number, since it uses as much as digits as its factorization.

2321879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331704.

The product of its digits is 6048, while the sum is 32.

The square root of 2321879 is about 1523.7713083006. The cubic root of 2321879 is about 132.4178486843.

The spelling of 2321879 in words is "two million, three hundred twenty-one thousand, eight hundred seventy-nine".