47243712 has 56 divisors (see below), whose sum is σ = 125640592. Its totient is φ = 15667200.

The previous prime is 47243711. The next prime is 47243743. The reversal of 47243712 is 21734274.

It is a self number, because there is not a number n which added to its sum of digits gives 47243712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47243711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45762 + ... + 46782.

It is an arithmetic number, because the mean of its divisors is an integer number (2243582).

Almost surely, 2^47243712 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 47243712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62820296).

47243712 is an abundant number, since it is smaller than the sum of its proper divisors (78396880).

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

47243712 is a wasteful number, since it uses less digits than its factorization.

47243712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277 (or 1267 counting only the distinct ones).

The product of its digits is 9408, while the sum is 30.

The square root of 47243712 is about 6873.4061425177. The cubic root of 47243712 is about 361.5053019047.

Adding to 47243712 its reverse (21734274), we get a palindrome (68977986).

The spelling of 47243712 in words is "forty-seven million, two hundred forty-three thousand, seven hundred twelve".