717982245 has 32 divisors (see below), whose sum is σ = 1278979200. Its totient is φ = 382154112.

The previous prime is 717982193. The next prime is 717982247. The reversal of 717982245 is 542289717.

It is a happy number.

It is not a de Polignac number, because 717982245 - 2²³ = 709593637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 717982245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (717982247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65521 + ... + 75689.

It is an arithmetic number, because the mean of its divisors is an integer number (39968100).

Almost surely, 2^717982245 is an apocalyptic number.

It is an amenable number.

717982245 is a deficient number, since it is larger than the sum of its proper divisors (560996955).

717982245 is a wasteful number, since it uses less digits than its factorization.

717982245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10706 (or 10700 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 717982245 is about 26795.1907065428. The cubic root of 717982245 is about 895.4429088569.

The spelling of 717982245 in words is "seven hundred seventeen million, nine hundred eighty-two thousand, two hundred forty-five".