2609613 has 6 divisors (see below), whose sum is σ = 3769454. Its totient is φ = 1739736.

The previous prime is 2609599. The next prime is 2609639. The reversal of 2609613 is 3169062.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2064969 + 544644 = 1437^2 + 738^2 .

It is not a de Polignac number, because 2609613 - 2⁴ = 2609597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2609683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144970 + ... + 144987.

2^2609613 is an apocalyptic number.

It is an amenable number.

2609613 is a deficient number, since it is larger than the sum of its proper divisors (1159841).

2609613 is a wasteful number, since it uses less digits than its factorization.

2609613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289963 (or 289960 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 2609613 is about 1615.4296642070. The cubic root of 2609613 is about 137.6761466997.

The spelling of 2609613 in words is "two million, six hundred nine thousand, six hundred thirteen".