2686231 has 4 divisors (see below), whose sum is σ = 2726392. Its totient is φ = 2646072.

The previous prime is 2686223. The next prime is 2686259. The reversal of 2686231 is 1326862.

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

It is a cyclic number.

It is not a de Polignac number, because 2686231 - 2³ = 2686223 is a prime.

It is a super-2 number, since 2×2686231² = 14431673970722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2686231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2686291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19980 + ... + 20113.

It is an arithmetic number, because the mean of its divisors is an integer number (681598).

2^2686231 is an apocalyptic number.

2686231 is a deficient number, since it is larger than the sum of its proper divisors (40161).

2686231 is an equidigital number, since it uses as much as digits as its factorization.

2686231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40160.

The product of its digits is 3456, while the sum is 28.

The square root of 2686231 is about 1638.9725440043. The cubic root of 2686231 is about 139.0105576578.

The spelling of 2686231 in words is "two million, six hundred eighty-six thousand, two hundred thirty-one".