12447792 has 120 divisors (see below), whose sum is σ = 40738464. Its totient is φ = 3474432.

The previous prime is 12447781. The next prime is 12447811. The reversal of 12447792 is 29774421.

12447792 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 6.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53308 + ... + 53540.

Almost surely, 2^12447792 is an apocalyptic number.

12447792 is a gapful number since it is divisible by the number (12) 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 12447792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20369232).

12447792 is an abundant number, since it is smaller than the sum of its proper divisors (28290672).

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

12447792 is a wasteful number, since it uses less digits than its factorization.

12447792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 298 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 12447792 is about 3528.1428542507. The cubic root of 12447792 is about 231.7558867110.

The spelling of 12447792 in words is "twelve million, four hundred forty-seven thousand, seven hundred ninety-two".