613709613 has 24 divisors (see below), whose sum is σ = 980316480. Its totient is φ = 366845760.

The previous prime is 613709611. The next prime is 613709617. The reversal of 613709613 is 316907316.

613709613 is a `hidden beast` number, since 6 + 1 + 37 + 0 + 9 + 613 = 666.

613709613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 613709613 - 2¹ = 613709611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613709611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35233 + ... + 49686.

It is an arithmetic number, because the mean of its divisors is an integer number (40846520).

Almost surely, 2^613709613 is an apocalyptic number.

It is an amenable number.

613709613 is a deficient number, since it is larger than the sum of its proper divisors (366606867).

613709613 is a wasteful number, since it uses less digits than its factorization.

613709613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85009 (or 85006 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 613709613 is about 24773.1631609692. The cubic root of 613709613 is about 849.8083134074.

The spelling of 613709613 in words is "six hundred thirteen million, seven hundred nine thousand, six hundred thirteen".