2644879 has 2 divisors, whose sum is σ = 2644880. Its totient is φ = 2644878.

The previous prime is 2644853. The next prime is 2644883. The reversal of 2644879 is 9784462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2644879 - 2⁵ = 2644847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2644849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322439 + 1322440.

It is an arithmetic number, because the mean of its divisors is an integer number (1322440).

2^2644879 is an apocalyptic number.

2644879 is a deficient number, since it is larger than the sum of its proper divisors (1).

2644879 is an equidigital number, since it uses as much as digits as its factorization.

2644879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 40.

The square root of 2644879 is about 1626.3083963382. The cubic root of 2644879 is about 138.2935535043.

The spelling of 2644879 in words is "two million, six hundred forty-four thousand, eight hundred seventy-nine".