718859 has 4 divisors (see below), whose sum is σ = 742080. Its totient is φ = 695640.

The previous prime is 718847. The next prime is 718871. The reversal of 718859 is 958817.

718859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 958817 = 17 ⋅56401.

It is an interprime number because it is at equal distance from previous prime (718847) and next prime (718871).

It is not a de Polignac number, because 718859 - 2⁸ = 718603 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 718859.

It is not an unprimeable number, because it can be changed into a prime (718259) 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, 11564 + ... + 11625.

It is an arithmetic number, because the mean of its divisors is an integer number (185520).

2⁷¹⁸⁸⁵⁹ is an apocalyptic number.

718859 is a deficient number, since it is larger than the sum of its proper divisors (23221).

718859 is a wasteful number, since it uses less digits than its factorization.

718859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23220.

The product of its digits is 20160, while the sum is 38.

The square root of 718859 is about 847.8555301465. The cubic root of 718859 is about 89.5807246882.

The spelling of 718859 in words is "seven hundred eighteen thousand, eight hundred fifty-nine".