2665879 has 2 divisors, whose sum is σ = 2665880. Its totient is φ = 2665878.

The previous prime is 2665867. The next prime is 2665891. The reversal of 2665879 is 9785662.

It is a balanced prime because it is at equal distance from previous prime (2665867) and next prime (2665891).

It is a cyclic number.

It is not a de Polignac number, because 2665879 - 2⁹ = 2665367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2665849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332939 + 1332940.

It is an arithmetic number, because the mean of its divisors is an integer number (1332940).

2^2665879 is an apocalyptic number.

2665879 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665879 is an equidigital number, since it uses as much as digits as its factorization.

2665879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 2665879 is about 1632.7519713661. The cubic root of 2665879 is about 138.6586000865.

The spelling of 2665879 in words is "two million, six hundred sixty-five thousand, eight hundred seventy-nine".