818968 has 16 divisors (see below), whose sum is σ = 1547280. Its totient is φ = 406368.

The previous prime is 818963. The next prime is 818969. The reversal of 818968 is 869818.

It is a happy number.

It is a plaindrome in base 15.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 818968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818963) by changing a digit.

818968 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 3 ways as a sum of consecutive naturals, for example, 1030 + ... + 1642.

It is an arithmetic number, because the mean of its divisors is an integer number (96705).

2⁸¹⁸⁹⁶⁸ is an apocalyptic number.

It is an amenable number.

818968 is a deficient number, since it is larger than the sum of its proper divisors (728312).

818968 is a wasteful number, since it uses less digits than its factorization.

818968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786 (or 782 counting only the distinct ones).

The product of its digits is 27648, while the sum is 40.

The square root of 818968 is about 904.9685077394. The cubic root of 818968 is about 93.5597338186.

The spelling of 818968 in words is "eight hundred eighteen thousand, nine hundred sixty-eight".