718445 has 16 divisors (see below), whose sum is σ = 1061760. Its totient is φ = 454464.

The previous prime is 718433. The next prime is 718453. The reversal of 718445 is 544817.

It is a cyclic number.

It is not a de Polignac number, because 718445 - 2⁶ = 718381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335 + ... + 1244.

It is an arithmetic number, because the mean of its divisors is an integer number (66360).

2⁷¹⁸⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

718445 is a deficient number, since it is larger than the sum of its proper divisors (343315).

718445 is a wasteful number, since it uses less digits than its factorization.

718445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604.

The product of its digits is 4480, while the sum is 29.

The square root of 718445 is about 847.6113496173. The cubic root of 718445 is about 89.5635244946.

The spelling of 718445 in words is "seven hundred eighteen thousand, four hundred forty-five".