742658717 has 2 divisors, whose sum is σ = 742658718. Its totient is φ = 742658716.

The previous prime is 742658701. The next prime is 742658729. The reversal of 742658717 is 717856247.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 692163481 + 50495236 = 26309^2 + 7106^2 .

It is an emirp because it is prime and its reverse (717856247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 742658717 - 2⁴ = 742658701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742658417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371329358 + 371329359.

It is an arithmetic number, because the mean of its divisors is an integer number (371329359).

Almost surely, 2^742658717 is an apocalyptic number.

It is an amenable number.

742658717 is a deficient number, since it is larger than the sum of its proper divisors (1).

742658717 is an equidigital number, since it uses as much as digits as its factorization.

742658717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 658560, while the sum is 47.

The square root of 742658717 is about 27251.7653923558. The cubic root of 742658717 is about 905.5861274373.

The spelling of 742658717 in words is "seven hundred forty-two million, six hundred fifty-eight thousand, seven hundred seventeen".