47639232 has 112 divisors (see below), whose sum is σ = 147523200. Its totient is φ = 15033600.

The previous prime is 47639177. The next prime is 47639237. The reversal of 47639232 is 23293674.

It is a happy number.

47639232 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 not an unprimeable number, because it can be changed into a prime (47639237) 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 15 ways as a sum of consecutive naturals, for example, 32107 + ... + 33557.

Almost surely, 2^47639232 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 47639232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73761600).

47639232 is an abundant number, since it is smaller than the sum of its proper divisors (99883968).

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

47639232 is a wasteful number, since it uses less digits than its factorization.

47639232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491 (or 1475 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 47639232 is about 6902.1179358223. The cubic root of 47639232 is about 362.5113293328.

The spelling of 47639232 in words is "forty-seven million, six hundred thirty-nine thousand, two hundred thirty-two".