2669879 has 4 divisors (see below), whose sum is σ = 2735040. Its totient is φ = 2604720.

The previous prime is 2669873. The next prime is 2669881. The reversal of 2669879 is 9789662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2669879 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 6 + 6⁵ + 9³ + 8⁵ + 7 + 9⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2669873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32519 + ... + 32600.

It is an arithmetic number, because the mean of its divisors is an integer number (683760).

2^2669879 is an apocalyptic number.

2669879 is a deficient number, since it is larger than the sum of its proper divisors (65161).

2669879 is an equidigital number, since it uses as much as digits as its factorization.

2669879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65160.

The product of its digits is 326592, while the sum is 47.

The square root of 2669879 is about 1633.9764380186. The cubic root of 2669879 is about 138.7279152145.

The spelling of 2669879 in words is "two million, six hundred sixty-nine thousand, eight hundred seventy-nine".