74691713 has 2 divisors, whose sum is σ = 74691714. Its totient is φ = 74691712.

The previous prime is 74691703. The next prime is 74691739. The reversal of 74691713 is 31719647.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73136704 + 1555009 = 8552^2 + 1247^2 .

It is a cyclic number.

It is not a de Polignac number, because 74691713 - 2¹² = 74687617 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (74691703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37345856 + 37345857.

It is an arithmetic number, because the mean of its divisors is an integer number (37345857).

Almost surely, 2^74691713 is an apocalyptic number.

It is an amenable number.

74691713 is a deficient number, since it is larger than the sum of its proper divisors (1).

74691713 is an equidigital number, since it uses as much as digits as its factorization.

74691713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 38.

The square root of 74691713 is about 8642.4367512872. The cubic root of 74691713 is about 421.1377184039.

The spelling of 74691713 in words is "seventy-four million, six hundred ninety-one thousand, seven hundred thirteen".