918812 has 6 divisors (see below), whose sum is σ = 1607928. Its totient is φ = 459404.

The previous prime is 918793. The next prime is 918823. The reversal of 918812 is 218819.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 918812.

It is an unprimeable number.

918812 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, 114848 + ... + 114855.

It is an arithmetic number, because the mean of its divisors is an integer number (267988).

2⁹¹⁸⁸¹² is an apocalyptic number.

It is an amenable number.

918812 is a deficient number, since it is larger than the sum of its proper divisors (689116).

918812 is a wasteful number, since it uses less digits than its factorization.

918812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229707 (or 229705 counting only the distinct ones).

The product of its digits is 1152, while the sum is 29.

The square root of 918812 is about 958.5468168013. The cubic root of 918812 is about 97.2170009834.

The spelling of 918812 in words is "nine hundred eighteen thousand, eight hundred twelve".