2686897 has 2 divisors, whose sum is σ = 2686898. Its totient is φ = 2686896.

The previous prime is 2686891. The next prime is 2686907. The reversal of 2686897 is 7986862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2686321 + 576 = 1639^2 + 24^2 .

It is a cyclic number.

It is not a de Polignac number, because 2686897 - 2³ = 2686889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2686891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1343448 + 1343449.

It is an arithmetic number, because the mean of its divisors is an integer number (1343449).

2^2686897 is an apocalyptic number.

It is an amenable number.

2686897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2686897 is an equidigital number, since it uses as much as digits as its factorization.

2686897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 46.

The square root of 2686897 is about 1639.1757074823. The cubic root of 2686897 is about 139.0220450517.

The spelling of 2686897 in words is "two million, six hundred eighty-six thousand, eight hundred ninety-seven".