718956 has 60 divisors (see below), whose sum is σ = 2154768. Its totient is φ = 204768.

The previous prime is 718943. The next prime is 718973. The reversal of 718956 is 659817.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 718956.

It is an unprimeable number.

718956 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2110 + ... + 2426.

2⁷¹⁸⁹⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 718956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1077384).

718956 is an abundant number, since it is smaller than the sum of its proper divisors (1435812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

718956 is a wasteful number, since it uses less digits than its factorization.

718956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 329 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 718956 is about 847.9127313586. The cubic root of 718956 is about 89.5847537303.

The spelling of 718956 in words is "seven hundred eighteen thousand, nine hundred fifty-six".