718872223 has 4 divisors (see below), whose sum is σ = 738301240. Its totient is φ = 699443208.

The previous prime is 718872211. The next prime is 718872241. The reversal of 718872223 is 322278817.

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

It is a cyclic number.

It is not a de Polignac number, because 718872223 - 2¹⁷ = 718741151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (718872293) 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, 9714453 + ... + 9714526.

It is an arithmetic number, because the mean of its divisors is an integer number (184575310).

Almost surely, 2^718872223 is an apocalyptic number.

718872223 is a deficient number, since it is larger than the sum of its proper divisors (19429017).

718872223 is a wasteful number, since it uses less digits than its factorization.

718872223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19429016.

The product of its digits is 75264, while the sum is 40.

The square root of 718872223 is about 26811.7926107152. The cubic root of 718872223 is about 895.8127394687.

The spelling of 718872223 in words is "seven hundred eighteen million, eight hundred seventy-two thousand, two hundred twenty-three".