613657423 has 2 divisors, whose sum is σ = 613657424. Its totient is φ = 613657422.

The previous prime is 613657409. The next prime is 613657433. The reversal of 613657423 is 324756316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 613657423 - 2¹⁷ = 613526351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613657433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306828711 + 306828712.

It is an arithmetic number, because the mean of its divisors is an integer number (306828712).

Almost surely, 2^613657423 is an apocalyptic number.

613657423 is a deficient number, since it is larger than the sum of its proper divisors (1).

613657423 is an equidigital number, since it uses as much as digits as its factorization.

613657423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 37.

The square root of 613657423 is about 24772.1097809613. The cubic root of 613657423 is about 849.7842234294.

The spelling of 613657423 in words is "six hundred thirteen million, six hundred fifty-seven thousand, four hundred twenty-three".