7818112 has 32 divisors (see below), whose sum is σ = 15752880. Its totient is φ = 3864576.

The previous prime is 7818071. The next prime is 7818127. The reversal of 7818112 is 2118187.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×7818112² = 122245750489088, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12888 + ... + 13480.

Almost surely, 2^7818112 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 7818112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7876440).

7818112 is an abundant number, since it is smaller than the sum of its proper divisors (7934768).

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

7818112 is a wasteful number, since it uses less digits than its factorization.

7818112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710 (or 698 counting only the distinct ones).

The product of its digits is 896, while the sum is 28.

The square root of 7818112 is about 2796.0886967333. The cubic root of 7818112 is about 198.4726320958.

The spelling of 7818112 in words is "seven million, eight hundred eighteen thousand, one hundred twelve".