718881 has 8 divisors (see below), whose sum is σ = 991680. Its totient is φ = 462672.

The previous prime is 718871. The next prime is 718897. The reversal of 718881 is 188817.

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

It is not a de Polignac number, because 718881 - 2¹⁴ = 702497 is a prime.

It is a super-2 number, since 2×718881² = 1033579784322, which contains 22 as substring.

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.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 718881.

It is not an unprimeable number, because it can be changed into a prime (718801) 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, 4045 + ... + 4218.

It is an arithmetic number, because the mean of its divisors is an integer number (123960).

2⁷¹⁸⁸⁸¹ is an apocalyptic number.

It is an amenable number.

718881 is a deficient number, since it is larger than the sum of its proper divisors (272799).

718881 is a wasteful number, since it uses less digits than its factorization.

718881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8295.

The product of its digits is 3584, while the sum is 33.

The square root of 718881 is about 847.8685039557. The cubic root of 718881 is about 89.5816385233.

The spelling of 718881 in words is "seven hundred eighteen thousand, eight hundred eighty-one".