2668879 has 2 divisors, whose sum is σ = 2668880. Its totient is φ = 2668878.

The previous prime is 2668877. The next prime is 2668889. The reversal of 2668879 is 9788662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2668879 - 2¹ = 2668877 is a prime.

Together with 2668877, it forms a pair of twin primes.

2668879 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2668877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1334439 + 1334440.

It is an arithmetic number, because the mean of its divisors is an integer number (1334440).

2^2668879 is an apocalyptic number.

2668879 is a deficient number, since it is larger than the sum of its proper divisors (1).

2668879 is an equidigital number, since it uses as much as digits as its factorization.

2668879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 46.

The square root of 2668879 is about 1633.6704073956. The cubic root of 2668879 is about 138.7105929265.

The spelling of 2668879 in words is "two million, six hundred sixty-eight thousand, eight hundred seventy-nine".