2679806 has 4 divisors (see below), whose sum is σ = 4019712. Its totient is φ = 1339902.

The previous prime is 2679773. The next prime is 2679811. The reversal of 2679806 is 6089762.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2679806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669950 + ... + 669953.

It is an arithmetic number, because the mean of its divisors is an integer number (1004928).

2^2679806 is an apocalyptic number.

2679806 is a deficient number, since it is larger than the sum of its proper divisors (1339906).

2679806 is a wasteful number, since it uses less digits than its factorization.

2679806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339905.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 2679806 is about 1637.0113011217. The cubic root of 2679806 is about 138.8996394404.

The spelling of 2679806 in words is "two million, six hundred seventy-nine thousand, eight hundred six".