2689879 has 4 divisors (see below), whose sum is σ = 2693520. Its totient is φ = 2686240.

The previous prime is 2689877. The next prime is 2689889. The reversal of 2689879 is 9789862.

It is a happy number.

2689879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

2689879 is an esthetic number in base 12, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2689879 - 2¹ = 2689877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274 + ... + 2335.

It is an arithmetic number, because the mean of its divisors is an integer number (673380).

2^2689879 is an apocalyptic number.

2689879 is a deficient number, since it is larger than the sum of its proper divisors (3641).

2689879 is a wasteful number, since it uses less digits than its factorization.

2689879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640.

The product of its digits is 435456, while the sum is 49.

The square root of 2689879 is about 1640.0850587698. The cubic root of 2689879 is about 139.0734563349.

The spelling of 2689879 in words is "two million, six hundred eighty-nine thousand, eight hundred seventy-nine".