613113689 has 4 divisors (see below), whose sum is σ = 613182180. Its totient is φ = 613045200.

The previous prime is 613113673. The next prime is 613113701. The reversal of 613113689 is 986311316.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 102353689 + 510760000 = 10117^2 + 22600^2 .

It is a cyclic number.

It is not a de Polignac number, because 613113689 - 2⁴ = 613113673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (613113649) 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, 18362 + ... + 39539.

It is an arithmetic number, because the mean of its divisors is an integer number (153295545).

Almost surely, 2^613113689 is an apocalyptic number.

It is an amenable number.

613113689 is a deficient number, since it is larger than the sum of its proper divisors (68491).

613113689 is a wasteful number, since it uses less digits than its factorization.

613113689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68490.

The product of its digits is 23328, while the sum is 38.

The square root of 613113689 is about 24761.1326275677. The cubic root of 613113689 is about 849.5331641826.

The spelling of 613113689 in words is "six hundred thirteen million, one hundred thirteen thousand, six hundred eighty-nine".