2656613 has 4 divisors (see below), whose sum is σ = 2666688. Its totient is φ = 2646540.

The previous prime is 2656601. The next prime is 2656627. The reversal of 2656613 is 3166562.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2656613 - 2²⁰ = 1608037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4631 + ... + 5172.

It is an arithmetic number, because the mean of its divisors is an integer number (666672).

2^2656613 is an apocalyptic number.

It is an amenable number.

2656613 is a deficient number, since it is larger than the sum of its proper divisors (10075).

2656613 is an equidigital number, since it uses as much as digits as its factorization.

2656613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10074.

The product of its digits is 6480, while the sum is 29.

The square root of 2656613 is about 1629.9119608126. The cubic root of 2656613 is about 138.4977648247.

The spelling of 2656613 in words is "two million, six hundred fifty-six thousand, six hundred thirteen".