818946 has 12 divisors (see below), whose sum is σ = 1774422. Its totient is φ = 272976.

The previous prime is 818897. The next prime is 818947. The reversal of 818946 is 649818.

It is a happy number.

818946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 783225 + 35721 = 885^2 + 189^2 .

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 818946.

It is not an unprimeable number, because it can be changed into a prime (818947) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22731 + ... + 22766.

2⁸¹⁸⁹⁴⁶ is an apocalyptic number.

818946 is an abundant number, since it is smaller than the sum of its proper divisors (955476).

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

818946 is a wasteful number, since it uses less digits than its factorization.

818946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45505 (or 45502 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 818946 is about 904.9563525386. The cubic root of 818946 is about 93.5588960437.

It can be divided in two parts, 818 and 946, that added together give a square (1764 = 42²).

The spelling of 818946 in words is "eight hundred eighteen thousand, nine hundred forty-six".