47547936 has 72 divisors (see below), whose sum is σ = 139901580. Its totient is φ = 15300096.

The previous prime is 47547931. The next prime is 47547947. The reversal of 47547936 is 63974574.

It can be written as a sum of positive squares in 2 ways, for example, as 45643536 + 1904400 = 6756^2 + 1380^2 .

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 = 47547891 and 47547900.

It is not an unprimeable number, because it can be changed into a prime (47547931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5506 + ... + 11198.

Almost surely, 2^47547936 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 47547936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69950790).

47547936 is an abundant number, since it is smaller than the sum of its proper divisors (92353644).

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

47547936 is a wasteful number, since it uses less digits than its factorization.

47547936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5738 (or 5727 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 47547936 is about 6895.5011420491. The cubic root of 47547936 is about 362.2796085631.

The spelling of 47547936 in words is "forty-seven million, five hundred forty-seven thousand, nine hundred thirty-six".