74317613 has 2 divisors, whose sum is σ = 74317614. Its totient is φ = 74317612.

The previous prime is 74317609. The next prime is 74317637. The reversal of 74317613 is 31671347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52954729 + 21362884 = 7277^2 + 4622^2 .

It is a cyclic number.

It is not a de Polignac number, because 74317613 - 2² = 74317609 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74317613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74317603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37158806 + 37158807.

It is an arithmetic number, because the mean of its divisors is an integer number (37158807).

Almost surely, 2^74317613 is an apocalyptic number.

It is an amenable number.

74317613 is a deficient number, since it is larger than the sum of its proper divisors (1).

74317613 is an equidigital number, since it uses as much as digits as its factorization.

74317613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584, while the sum is 32.

The square root of 74317613 is about 8620.7663812448. The cubic root of 74317613 is about 420.4334395362.

The spelling of 74317613 in words is "seventy-four million, three hundred seventeen thousand, six hundred thirteen".