717102427 has 4 divisors (see below), whose sum is σ = 754844680. Its totient is φ = 679360176.

The previous prime is 717102403. The next prime is 717102431. The reversal of 717102427 is 724201717.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-717102427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (717102457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18871098 + ... + 18871135.

It is an arithmetic number, because the mean of its divisors is an integer number (188711170).

Almost surely, 2^717102427 is an apocalyptic number.

717102427 is a deficient number, since it is larger than the sum of its proper divisors (37742253).

717102427 is a wasteful number, since it uses less digits than its factorization.

717102427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37742252.

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 717102427 is about 26778.7682128958. The cubic root of 717102427 is about 895.0769997109.

The spelling of 717102427 in words is "seven hundred seventeen million, one hundred two thousand, four hundred twenty-seven".