613624213 has 2 divisors, whose sum is σ = 613624214. Its totient is φ = 613624212.

The previous prime is 613624201. The next prime is 613624223. The reversal of 613624213 is 312426316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 495641169 + 117983044 = 22263^2 + 10862^2 .

It is a cyclic number.

It is not a de Polignac number, because 613624213 - 2²⁵ = 580069781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613624223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306812106 + 306812107.

It is an arithmetic number, because the mean of its divisors is an integer number (306812107).

Almost surely, 2^613624213 is an apocalyptic number.

It is an amenable number.

613624213 is a deficient number, since it is larger than the sum of its proper divisors (1).

613624213 is an equidigital number, since it uses as much as digits as its factorization.

613624213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

The square root of 613624213 is about 24771.4394616058. The cubic root of 613624213 is about 849.7688935716.

The spelling of 613624213 in words is "six hundred thirteen million, six hundred twenty-four thousand, two hundred thirteen".