2681656 has 8 divisors (see below), whose sum is σ = 5028120. Its totient is φ = 1340824.

The previous prime is 2681617. The next prime is 2681663. The reversal of 2681656 is 6561862.

2681656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167596 + ... + 167611.

It is an arithmetic number, because the mean of its divisors is an integer number (628515).

2^2681656 is an apocalyptic number.

It is an amenable number.

2681656 is a deficient number, since it is larger than the sum of its proper divisors (2346464).

2681656 is a wasteful number, since it uses less digits than its factorization.

2681656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335213 (or 335209 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 2681656 is about 1637.5762577663. The cubic root of 2681656 is about 138.9315951397.

The spelling of 2681656 in words is "two million, six hundred eighty-one thousand, six hundred fifty-six".