717996945 has 8 divisors (see below), whose sum is σ = 1148795136. Its totient is φ = 382931696.

The previous prime is 717996941. The next prime is 717996949. The reversal of 717996945 is 549699717.

717996945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (717996941) and next prime (717996949).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 717996945 - 2² = 717996941 is a prime.

It is a super-2 number, since 2×717996945² = 1031039226058666050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (717996941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23933217 + ... + 23933246.

It is an arithmetic number, because the mean of its divisors is an integer number (143599392).

Almost surely, 2^717996945 is an apocalyptic number.

It is an amenable number.

717996945 is a deficient number, since it is larger than the sum of its proper divisors (430798191).

717996945 is a wasteful number, since it uses less digits than its factorization.

717996945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47866471.

The product of its digits is 4286520, while the sum is 57.

The square root of 717996945 is about 26795.4650080942. The cubic root of 717996945 is about 895.4490199277.

The spelling of 717996945 in words is "seven hundred seventeen million, nine hundred ninety-six thousand, nine hundred forty-five".