717428723 has 12 divisors (see below), whose sum is σ = 803464704. Its totient is φ = 639896400.

The previous prime is 717428717. The next prime is 717428737. The reversal of 717428723 is 327824717.

It is not a de Polignac number, because 717428723 - 2⁴ = 717428707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (717428773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49523 + ... + 62348.

It is an arithmetic number, because the mean of its divisors is an integer number (66955392).

Almost surely, 2^717428723 is an apocalyptic number.

717428723 is a deficient number, since it is larger than the sum of its proper divisors (86035981).

717428723 is a wasteful number, since it uses less digits than its factorization.

717428723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111946 (or 111935 counting only the distinct ones).

The product of its digits is 131712, while the sum is 41.

The square root of 717428723 is about 26784.8599585661. The cubic root of 717428723 is about 895.2127384595.

The spelling of 717428723 in words is "seven hundred seventeen million, four hundred twenty-eight thousand, seven hundred twenty-three".