2646513 has 12 divisors (see below), whose sum is σ = 3964688. Its totient is φ = 1764180.

The previous prime is 2646493. The next prime is 2646517. The reversal of 2646513 is 3156462.

2646513 is a `hidden beast` number, since 2 + 6 + 4 + 651 + 3 = 666.

It is not a de Polignac number, because 2646513 - 2⁹ = 2646001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 2¹⁷ + 6⁷ + 4⁴ + 6⁷ + 5⁹ + 1 + 3⁷ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2646517) 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, 5203 + ... + 5688.

2^2646513 is an apocalyptic number.

It is an amenable number.

2646513 is a deficient number, since it is larger than the sum of its proper divisors (1318175).

2646513 is an equidigital number, since it uses as much as digits as its factorization.

2646513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10906 (or 10894 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 2646513 is about 1626.8106835154. The cubic root of 2646513 is about 138.3220267851.

The spelling of 2646513 in words is "two million, six hundred forty-six thousand, five hundred thirteen".