613679377 has 2 divisors, whose sum is σ = 613679378. Its totient is φ = 613679376.

The previous prime is 613679357. The next prime is 613679389. The reversal of 613679377 is 773976316.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 321987136 + 291692241 = 17944^2 + 17079^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-613679377 is a prime.

It is a super-3 number, since 3×613679377³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 613679377.

It is not a weakly prime, because it can be changed into another prime (613679357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306839688 + 306839689.

It is an arithmetic number, because the mean of its divisors is an integer number (306839689).

Almost surely, 2^613679377 is an apocalyptic number.

It is an amenable number.

613679377 is a deficient number, since it is larger than the sum of its proper divisors (1).

613679377 is an equidigital number, since it uses as much as digits as its factorization.

613679377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1000188, while the sum is 49.

The square root of 613679377 is about 24772.5528963004. The cubic root of 613679377 is about 849.7943571727.

The spelling of 613679377 in words is "six hundred thirteen million, six hundred seventy-nine thousand, three hundred seventy-seven".