613494377 has 2 divisors, whose sum is σ = 613494378. Its totient is φ = 613494376.

The previous prime is 613494257. The next prime is 613494403. The reversal of 613494377 is 773494316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 317516761 + 295977616 = 17819^2 + 17204^2 .

It is a cyclic number.

It is not a de Polignac number, because 613494377 - 2⁸ = 613494121 is a prime.

It is a super-2 number, since 2×613494377² = 752750701221236258, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (613434377) 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, 306747188 + 306747189.

It is an arithmetic number, because the mean of its divisors is an integer number (306747189).

Almost surely, 2^613494377 is an apocalyptic number.

It is an amenable number.

613494377 is a deficient number, since it is larger than the sum of its proper divisors (1).

613494377 is an equidigital number, since it uses as much as digits as its factorization.

613494377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 44.

The square root of 613494377 is about 24768.8186436091. The cubic root of 613494377 is about 849.7089554888.

The spelling of 613494377 in words is "six hundred thirteen million, four hundred ninety-four thousand, three hundred seventy-seven".