8918312 has 32 divisors (see below), whose sum is σ = 18635400. Its totient is φ = 3972864.

The previous prime is 8918311. The next prime is 8918333. The reversal of 8918312 is 2138198.

It can be written as a sum of positive squares in 4 ways, for example, as 4813636 + 4104676 = 2194^2 + 2026^2 .

It is not an unprimeable number, because it can be changed into a prime (8918311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1538 + ... + 4494.

Almost surely, 2^8918312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8918312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9317700).

8918312 is an abundant number, since it is smaller than the sum of its proper divisors (9717088).

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

8918312 is a wasteful number, since it uses less digits than its factorization.

8918312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005 (or 3001 counting only the distinct ones).

The product of its digits is 3456, while the sum is 32.

The square root of 8918312 is about 2986.3542991413. The cubic root of 8918312 is about 207.3771431245.

The spelling of 8918312 in words is "eight million, nine hundred eighteen thousand, three hundred twelve".