2649613 has 2 divisors, whose sum is σ = 2649614. Its totient is φ = 2649612.

The previous prime is 2649611. The next prime is 2649677. The reversal of 2649613 is 3169462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2518569 + 131044 = 1587^2 + 362^2 .

2649613 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 2649613 - 2¹ = 2649611 is a prime.

Together with 2649611, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 2²¹ + 6² + 4 + 9⁶ + 6⁴ + 1 + 3⁹ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2649611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1324806 + 1324807.

It is an arithmetic number, because the mean of its divisors is an integer number (1324807).

2^2649613 is an apocalyptic number.

It is an amenable number.

2649613 is a deficient number, since it is larger than the sum of its proper divisors (1).

2649613 is an equidigital number, since it uses as much as digits as its factorization.

2649613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 31.

The square root of 2649613 is about 1627.7631891648. The cubic root of 2649613 is about 138.3760136687.

The spelling of 2649613 in words is "two million, six hundred forty-nine thousand, six hundred thirteen".