613747349 has 2 divisors, whose sum is σ = 613747350. Its totient is φ = 613747348.

The previous prime is 613747307. The next prime is 613747361. The reversal of 613747349 is 943747316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 598144849 + 15602500 = 24457^2 + 3950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-613747349 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613707349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306873674 + 306873675.

It is an arithmetic number, because the mean of its divisors is an integer number (306873675).

Almost surely, 2^613747349 is an apocalyptic number.

It is an amenable number.

613747349 is a deficient number, since it is larger than the sum of its proper divisors (1).

613747349 is an equidigital number, since it uses as much as digits as its factorization.

613747349 is an evil number, because the sum of its binary digits is even.

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

The square root of 613747349 is about 24773.9247798971. The cubic root of 613747349 is about 849.8257308247.

The spelling of 613747349 in words is "six hundred thirteen million, seven hundred forty-seven thousand, three hundred forty-nine".