2648605 has 8 divisors (see below), whose sum is σ = 3188664. Its totient is φ = 2112000.

The previous prime is 2648593. The next prime is 2648623. The reversal of 2648605 is 5068462.

It can be written as a sum of positive squares in 4 ways, for example, as 1674436 + 974169 = 1294^2 + 987^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2648605 - 2¹⁷ = 2517533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1345 + ... + 2665.

It is an arithmetic number, because the mean of its divisors is an integer number (398583).

2^2648605 is an apocalyptic number.

It is an amenable number.

2648605 is a deficient number, since it is larger than the sum of its proper divisors (540059).

2648605 is a wasteful number, since it uses less digits than its factorization.

2648605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 2648605 is about 1627.4535323628. The cubic root of 2648605 is about 138.3584638462.

The spelling of 2648605 in words is "two million, six hundred forty-eight thousand, six hundred five".