47143312 has 40 divisors (see below), whose sum is σ = 99850752. Its totient is φ = 21465600.

The previous prime is 47143297. The next prime is 47143319. The reversal of 47143312 is 21334174.

47143312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (47143319) 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 7 ways as a sum of consecutive naturals, for example, 5637 + ... + 11227.

Almost surely, 2^47143312 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 47143312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49925376).

47143312 is an abundant number, since it is smaller than the sum of its proper divisors (52707440).

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

47143312 is a wasteful number, since it uses less digits than its factorization.

47143312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5647 (or 5641 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 47143312 is about 6866.0987467411. The cubic root of 47143312 is about 361.2490358886.

Adding to 47143312 its reverse (21334174), we get a palindrome (68477486).

The spelling of 47143312 in words is "forty-seven million, one hundred forty-three thousand, three hundred twelve".