717672666 has 16 divisors (see below), whose sum is σ = 1468725984. Its totient is φ = 233660784.

The previous prime is 717672653. The next prime is 717672667. The reversal of 717672666 is 666276717.

717672666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (717672667) 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, 1390581 + ... + 1391096.

It is an arithmetic number, because the mean of its divisors is an integer number (91795374).

Almost surely, 2^717672666 is an apocalyptic number.

717672666 is an abundant number, since it is smaller than the sum of its proper divisors (751053318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

717672666 is a wasteful number, since it uses less digits than its factorization.

717672666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781725.

The product of its digits is 889056, while the sum is 48.

The square root of 717672666 is about 26789.4133194439. The cubic root of 717672666 is about 895.3141915735.

The spelling of 717672666 in words is "seven hundred seventeen million, six hundred seventy-two thousand, six hundred sixty-six".