2668653 has 16 divisors (see below), whose sum is σ = 4258240. Its totient is φ = 1642032.

The previous prime is 2668639. The next prime is 2668663. The reversal of 2668653 is 3568662.

2668653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2668653 - 2⁴ = 2668637 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 (2668663) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 3451 + ... + 4152.

It is an arithmetic number, because the mean of its divisors is an integer number (266140).

2^2668653 is an apocalyptic number.

It is an amenable number.

2668653 is a deficient number, since it is larger than the sum of its proper divisors (1589587).

2668653 is a wasteful number, since it uses less digits than its factorization.

2668653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7625 (or 7619 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 2668653 is about 1633.6012365323. The cubic root of 2668653 is about 138.7066774900.

Subtracting 2668653 from its reverse (3568662), we obtain a palindrome (900009).

It can be divided in two parts, 2668 and 653, that added together give a triangular number (3321 = T₈₁).

The spelling of 2668653 in words is "two million, six hundred sixty-eight thousand, six hundred fifty-three".