613850085 has 12 divisors (see below), whose sum is σ = 1064006892. Its totient is φ = 327386688.

The previous prime is 613850071. The next prime is 613850087. The reversal of 613850085 is 580058316.

It can be written as a sum of positive squares in 2 ways, for example, as 401361156 + 212488929 = 20034^2 + 14577^2 .

It is not a de Polignac number, because 613850085 - 2⁵ = 613850053 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613850087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6820512 + ... + 6820601.

It is an arithmetic number, because the mean of its divisors is an integer number (88667241).

Almost surely, 2^613850085 is an apocalyptic number.

It is an amenable number.

613850085 is a deficient number, since it is larger than the sum of its proper divisors (450156807).

613850085 is a wasteful number, since it uses less digits than its factorization.

613850085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13641124 (or 13641121 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 613850085 is about 24775.9981635453. The cubic root of 613850085 is about 849.8731460058.

The spelling of 613850085 in words is "six hundred thirteen million, eight hundred fifty thousand, eighty-five".