818996 has 6 divisors (see below), whose sum is σ = 1433250. Its totient is φ = 409496.

The previous prime is 818977. The next prime is 818999. The reversal of 818996 is 699818.

It can be written as a sum of positive squares in only one way, i.e., 792100 + 26896 = 890^2 + 164^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818999) by changing a digit.

818996 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102371 + ... + 102378.

It is an arithmetic number, because the mean of its divisors is an integer number (238875).

2⁸¹⁸⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

818996 is a deficient number, since it is larger than the sum of its proper divisors (614254).

818996 is a wasteful number, since it uses less digits than its factorization.

818996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204753 (or 204751 counting only the distinct ones).

The product of its digits is 31104, while the sum is 41.

The square root of 818996 is about 904.9839777587. The cubic root of 818996 is about 93.5608000559.

The spelling of 818996 in words is "eight hundred eighteen thousand, nine hundred ninety-six".