8113613 has 4 divisors (see below), whose sum is σ = 8311548. Its totient is φ = 7915680.

The previous prime is 8113601. The next prime is 8113631. The reversal of 8113613 is 3163118.

8113613 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3087049 + 5026564 = 1757^2 + 2242^2 .

It is a cyclic number.

It is not a de Polignac number, because 8113613 - 2⁴ = 8113597 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 (8113643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98906 + ... + 98987.

It is an arithmetic number, because the mean of its divisors is an integer number (2077887).

Almost surely, 2^8113613 is an apocalyptic number.

It is an amenable number.

8113613 is a deficient number, since it is larger than the sum of its proper divisors (197935).

8113613 is a wasteful number, since it uses less digits than its factorization.

8113613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197934.

The product of its digits is 432, while the sum is 23.

The square root of 8113613 is about 2848.4404504922. The cubic root of 8113613 is about 200.9423281155.

The spelling of 8113613 in words is "eight million, one hundred thirteen thousand, six hundred thirteen".