12047322 has 64 divisors (see below), whose sum is σ = 29859840. Its totient is φ = 3161856.

The previous prime is 12047309. The next prime is 12047323. The reversal of 12047322 is 22374021.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (12047323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33379 + ... + 33737.

It is an arithmetic number, because the mean of its divisors is an integer number (466560).

Almost surely, 2^12047322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12047322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14929920).

12047322 is an abundant number, since it is smaller than the sum of its proper divisors (17812518).

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

12047322 is a wasteful number, since it uses less digits than its factorization.

12047322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 12047322 is about 3470.9252368785. The cubic root of 12047322 is about 229.2433991567.

The spelling of 12047322 in words is "twelve million, forty-seven thousand, three hundred twenty-two".