2685879 has 24 divisors (see below), whose sum is σ = 4600960. Its totient is φ = 1533816.

The previous prime is 2685877. The next prime is 2685883. The reversal of 2685879 is 9785862.

2685879 is a `hidden beast` number, since 2 + 68 + 587 + 9 = 666.

It is not a de Polignac number, because 2685879 - 2¹ = 2685877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685877) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 912 + ... + 2490.

2^2685879 is an apocalyptic number.

2685879 is a deficient number, since it is larger than the sum of its proper divisors (1915081).

2685879 is an equidigital number, since it uses as much as digits as its factorization.

2685879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601 (or 1589 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 2685879 is about 1638.8651561370. The cubic root of 2685879 is about 139.0044854754.

It can be divided in two parts, 26 and 85879, that added together give a triangular number (85905 = T₄₁₄).

The spelling of 2685879 in words is "two million, six hundred eighty-five thousand, eight hundred seventy-nine".