612967613 has 2 divisors, whose sum is σ = 612967614. Its totient is φ = 612967612.

The previous prime is 612967601. The next prime is 612967633. The reversal of 612967613 is 316769216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 612909049 + 58564 = 24757^2 + 242^2 .

It is a cyclic number.

It is not a de Polignac number, because 612967613 - 2¹⁰ = 612966589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612967633) 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, 306483806 + 306483807.

It is an arithmetic number, because the mean of its divisors is an integer number (306483807).

Almost surely, 2^612967613 is an apocalyptic number.

It is an amenable number.

612967613 is a deficient number, since it is larger than the sum of its proper divisors (1).

612967613 is an equidigital number, since it uses as much as digits as its factorization.

612967613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 41.

The square root of 612967613 is about 24758.1827483360. The cubic root of 612967613 is about 849.4656909633.

The spelling of 612967613 in words is "six hundred twelve million, nine hundred sixty-seven thousand, six hundred thirteen".