2648709 has 12 divisors (see below), whose sum is σ = 4372576. Its totient is φ = 1513512.

The previous prime is 2648707. The next prime is 2648713. The reversal of 2648709 is 9078462.

2648709 is a `hidden beast` number, since 2 + 648 + 7 + 0 + 9 = 666.

It is not a de Polignac number, because 2648709 - 2¹ = 2648707 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 (2648707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20959 + ... + 21084.

2^2648709 is an apocalyptic number.

It is an amenable number.

2648709 is a deficient number, since it is larger than the sum of its proper divisors (1723867).

2648709 is a wasteful number, since it uses less digits than its factorization.

2648709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42056 (or 42053 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2648709 is about 1627.4854838062. The cubic root of 2648709 is about 138.3602747481.

The spelling of 2648709 in words is "two million, six hundred forty-eight thousand, seven hundred nine".