2686556 has 12 divisors (see below), whose sum is σ = 4746168. Its totient is φ = 1330512.

The previous prime is 2686547. The next prime is 2686559. The reversal of 2686556 is 6556862.

It is a happy number.

It is a super-2 number, since 2×2686556² = 14435166282272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2686559) 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, 2711 + ... + 3566.

It is an arithmetic number, because the mean of its divisors is an integer number (395514).

2^2686556 is an apocalyptic number.

It is an amenable number.

2686556 is a deficient number, since it is larger than the sum of its proper divisors (2059612).

2686556 is a wasteful number, since it uses less digits than its factorization.

2686556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6388 (or 6386 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 2686556 is about 1639.0716884871. The cubic root of 2686556 is about 139.0161636052.

The spelling of 2686556 in words is "two million, six hundred eighty-six thousand, five hundred fifty-six".