613968629 has 2 divisors, whose sum is σ = 613968630. Its totient is φ = 613968628.

The previous prime is 613968571. The next prime is 613968659. The reversal of 613968629 is 926869316.

613968629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 324900625 + 289068004 = 18025^2 + 17002^2 .

It is a cyclic number.

It is not a de Polignac number, because 613968629 - 2⁸ = 613968373 is a prime.

It is a super-2 number, since 2×613968629² = 753914954792279282, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613968659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306984314 + 306984315.

It is an arithmetic number, because the mean of its divisors is an integer number (306984315).

Almost surely, 2^613968629 is an apocalyptic number.

It is an amenable number.

613968629 is a deficient number, since it is larger than the sum of its proper divisors (1).

613968629 is an equidigital number, since it uses as much as digits as its factorization.

613968629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 50.

The square root of 613968629 is about 24778.3903633791. The cubic root of 613968629 is about 849.9278503927.

The spelling of 613968629 in words is "six hundred thirteen million, nine hundred sixty-eight thousand, six hundred twenty-nine".