718536 has 96 divisors (see below), whose sum is σ = 2298240. Its totient is φ = 185472.

The previous prime is 718513. The next prime is 718541. The reversal of 718536 is 635817.

Its product of digits (5040) is a multiple of the sum of its prime divisors (72).

It is an unprimeable number.

718536 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 23 ways as a sum of consecutive naturals, for example, 15265 + ... + 15311.

It is an arithmetic number, because the mean of its divisors is an integer number (23940).

2⁷¹⁸⁵³⁶ 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 718536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1149120).

718536 is an abundant number, since it is smaller than the sum of its proper divisors (1579704).

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

718536 is a wasteful number, since it uses less digits than its factorization.

718536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83 (or 72 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 718536 is about 847.6650281804. The cubic root of 718536 is about 89.5673057800.

The spelling of 718536 in words is "seven hundred eighteen thousand, five hundred thirty-six".