613597 has 2 divisors, whose sum is σ = 613598. Its totient is φ = 613596.

The previous prime is 613577. The next prime is 613607. The reversal of 613597 is 795316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 549081 + 64516 = 741^2 + 254^2 .

It is a cyclic number.

It is not a de Polignac number, because 613597 - 2⁷ = 613469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306798 + 306799.

It is an arithmetic number, because the mean of its divisors is an integer number (306799).

2⁶¹³⁵⁹⁷ is an apocalyptic number.

It is an amenable number.

613597 is a deficient number, since it is larger than the sum of its proper divisors (1).

613597 is an equidigital number, since it uses as much as digits as its factorization.

613597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 31.

The square root of 613597 is about 783.3243261894. The cubic root of 613597 is about 84.9756331539.

The spelling of 613597 in words is "six hundred thirteen thousand, five hundred ninety-seven".