2648657 has 24 divisors (see below), whose sum is σ = 3291840. Its totient is φ = 2106720.

The previous prime is 2648629. The next prime is 2648669. The reversal of 2648657 is 7568462.

It is a happy number.

It is not a de Polignac number, because 2648657 - 2⁶ = 2648593 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

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 2648657.

It is not an unprimeable number, because it can be changed into a prime (2648677) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91319 + ... + 91347.

It is an arithmetic number, because the mean of its divisors is an integer number (137160).

2^2648657 is an apocalyptic number.

It is an amenable number.

2648657 is a deficient number, since it is larger than the sum of its proper divisors (643183).

2648657 is a wasteful number, since it uses less digits than its factorization.

2648657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 82 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 2648657 is about 1627.4695081629. The cubic root of 2648657 is about 138.3593693031.

The spelling of 2648657 in words is "two million, six hundred forty-eight thousand, six hundred fifty-seven".