812318 has 16 divisors (see below), whose sum is σ = 1327200. Its totient is φ = 370656.

The previous prime is 812309. The next prime is 812341. The reversal of 812318 is 813218.

812318 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 812293 and 812302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3983 + ... + 4181.

It is an arithmetic number, because the mean of its divisors is an integer number (82950).

2⁸¹²³¹⁸ is an apocalyptic number.

812318 is a deficient number, since it is larger than the sum of its proper divisors (514882).

812318 is a wasteful number, since it uses less digits than its factorization.

812318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371.

The product of its digits is 384, while the sum is 23.

The square root of 812318 is about 901.2868577761. The cubic root of 812318 is about 93.3058110460.

Subtracting 812318 from its reverse (813218), we obtain a square (900 = 30²).

The spelling of 812318 in words is "eight hundred twelve thousand, three hundred eighteen".