718089 has 8 divisors (see below), whose sum is σ = 973920. Its totient is φ = 470496.

The previous prime is 718087. The next prime is 718093. The reversal of 718089 is 980817.

718089 = 80² + 81² + ... + 138².

718089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 718089 - 2¹ = 718087 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

718089 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 718089.

It is not an unprimeable number, because it can be changed into a prime (718087) 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, 1852 + ... + 2205.

It is an arithmetic number, because the mean of its divisors is an integer number (121740).

2⁷¹⁸⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

718089 is a deficient number, since it is larger than the sum of its proper divisors (255831).

718089 is a wasteful number, since it uses less digits than its factorization.

718089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4119.

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 718089 is about 847.4013216888. The cubic root of 718089 is about 89.5487287053.

It can be divided in two parts, 71808 and 9, that added together give a palindrome (71817).

The spelling of 718089 in words is "seven hundred eighteen thousand, eighty-nine".