2679859 has 16 divisors (see below), whose sum is σ = 3371200. Its totient is φ = 2116800.

The previous prime is 2679847. The next prime is 2679869. The reversal of 2679859 is 9589762.

It is not a de Polignac number, because 2679859 - 2⁷ = 2679731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2679869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4159 + ... + 4759.

It is an arithmetic number, because the mean of its divisors is an integer number (210700).

2^2679859 is an apocalyptic number.

2679859 is a deficient number, since it is larger than the sum of its proper divisors (691341).

2679859 is an equidigital number, since it uses as much as digits as its factorization.

2679859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 621 counting only the distinct ones).

The product of its digits is 272160, while the sum is 46.

The square root of 2679859 is about 1637.0274890789. The cubic root of 2679859 is about 138.9005551326.

Subtracting 2679859 from its reverse (9589762), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2679859 in words is "two million, six hundred seventy-nine thousand, eight hundred fifty-nine".