2686791 has 12 divisors (see below), whose sum is σ = 3747128. Its totient is φ = 1712304.

The previous prime is 2686787. The next prime is 2686811. The reversal of 2686791 is 1976862.

It is not a de Polignac number, because 2686791 - 2² = 2686787 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 (2686751) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 741 + ... + 2433.

2^2686791 is an apocalyptic number.

2686791 is a deficient number, since it is larger than the sum of its proper divisors (1060337).

2686791 is a wasteful number, since it uses less digits than its factorization.

2686791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742 (or 1719 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 2686791 is about 1639.1433738389. The cubic root of 2686791 is about 139.0202168548.

The spelling of 2686791 in words is "two million, six hundred eighty-six thousand, seven hundred ninety-one".