8123412 has 96 divisors (see below), whose sum is σ = 22579200. Its totient is φ = 2246400.

The previous prime is 8123411. The next prime is 8123417. The reversal of 8123412 is 2143218.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8123411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102789 + ... + 102867.

It is an arithmetic number, because the mean of its divisors is an integer number (235200).

Almost surely, 2^8123412 is an apocalyptic number.

8123412 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8123412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11289600).

8123412 is an abundant number, since it is smaller than the sum of its proper divisors (14455788).

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

8123412 is a wasteful number, since it uses less digits than its factorization.

8123412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 155 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 8123412 is about 2850.1599955090. The cubic root of 8123412 is about 201.0231898197.

It can be divided in two parts, 812 and 3412, that added together give a palindrome (4224).

The spelling of 8123412 in words is "eight million, one hundred twenty-three thousand, four hundred twelve".