47871936 has 168 divisors, whose sum is σ = 162299904. Its totient is φ = 13201920.

The previous prime is 47871911. The next prime is 47871937. The reversal of 47871936 is 63917874.

It is a tau number, because it is divible by the number of its divisors (168).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 47871891 and 47871900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47871937) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124801 + ... + 125183.

Almost surely, 2^47871936 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 47871936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81149952).

47871936 is an abundant number, since it is smaller than the sum of its proper divisors (114427968).

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

47871936 is a wasteful number, since it uses less digits than its factorization.

47871936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 426 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 47871936 is about 6918.9548343662. The cubic root of 47871936 is about 363.1006255197.

The spelling of 47871936 in words is "forty-seven million, eight hundred seventy-one thousand, nine hundred thirty-six".