47113632 has 72 divisors (see below), whose sum is σ = 138623940. Its totient is φ = 15160320.

The previous prime is 47113631. The next prime is 47113639. The reversal of 47113632 is 23631174.

47113632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 41525136 + 5588496 = 6444^2 + 2364^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 47113596 and 47113605.

It is not an unprimeable number, because it can be changed into a prime (47113631) 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 11 ways as a sum of consecutive naturals, for example, 5532 + ... + 11172.

Almost surely, 2^47113632 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 47113632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69311970).

47113632 is an abundant number, since it is smaller than the sum of its proper divisors (91510308).

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

47113632 is a wasteful number, since it uses less digits than its factorization.

47113632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5686 (or 5675 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 47113632 is about 6863.9370626485. The cubic root of 47113632 is about 361.1732094933.

The spelling of 47113632 in words is "forty-seven million, one hundred thirteen thousand, six hundred thirty-two".