613655377 has 2 divisors, whose sum is σ = 613655378. Its totient is φ = 613655376.

The previous prime is 613655353. The next prime is 613655411. The reversal of 613655377 is 773556316.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 368294481 + 245360896 = 19191^2 + 15664^2 .

It is a cyclic number.

It is not a de Polignac number, because 613655377 - 2¹⁵ = 613622609 is a prime.

It is not a weakly prime, because it can be changed into another prime (613655327) 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, 306827688 + 306827689.

It is an arithmetic number, because the mean of its divisors is an integer number (306827689).

Almost surely, 2^613655377 is an apocalyptic number.

It is an amenable number.

613655377 is a deficient number, since it is larger than the sum of its proper divisors (1).

613655377 is an equidigital number, since it uses as much as digits as its factorization.

613655377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 396900, while the sum is 43.

The square root of 613655377 is about 24772.0684844847. The cubic root of 613655377 is about 849.7832790043.

The spelling of 613655377 in words is "six hundred thirteen million, six hundred fifty-five thousand, three hundred seventy-seven".