718873 has 4 divisors (see below), whose sum is σ = 738340. Its totient is φ = 699408.

The previous prime is 718871. The next prime is 718897. The reversal of 718873 is 378817.

It is a happy number.

718873 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.

It can be written as a sum of positive squares in 2 ways, for example, as 267289 + 451584 = 517^2 + 672^2 .

It is a cyclic number.

It is not a de Polignac number, because 718873 - 2¹ = 718871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (718871) 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, 9678 + ... + 9751.

It is an arithmetic number, because the mean of its divisors is an integer number (184585).

2⁷¹⁸⁸⁷³ is an apocalyptic number.

It is an amenable number.

718873 is a deficient number, since it is larger than the sum of its proper divisors (19467).

718873 is a wasteful number, since it uses less digits than its factorization.

718873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19466.

The product of its digits is 9408, while the sum is 34.

The square root of 718873 is about 847.8637862298. The cubic root of 718873 is about 89.5813062218.

The spelling of 718873 in words is "seven hundred eighteen thousand, eight hundred seventy-three".