47931072 has 112 divisors (see below), whose sum is σ = 152643840. Its totient is φ = 12966912.

The previous prime is 47931071. The next prime is 47931077. The reversal of 47931072 is 27013974.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (47931071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24598 + ... + 26474.

Almost surely, 2^47931072 is an apocalyptic number.

47931072 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47931072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76321920).

47931072 is an abundant number, since it is smaller than the sum of its proper divisors (104712768).

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

47931072 is a wasteful number, since it uses less digits than its factorization.

47931072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918 (or 1908 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 47931072 is about 6923.2269932453. The cubic root of 47931072 is about 363.2500762201.

The spelling of 47931072 in words is "forty-seven million, nine hundred thirty-one thousand, seventy-two".