47831880 has 64 divisors (see below), whose sum is σ = 151943040. Its totient is φ = 12004352.

The previous prime is 47831879. The next prime is 47831887. The reversal of 47831880 is 8813874.

It is not an unprimeable number, because it can be changed into a prime (47831887) 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, 9684 + ... + 13763.

It is an arithmetic number, because the mean of its divisors is an integer number (2374110).

Almost surely, 2^47831880 is an apocalyptic number.

47831880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47831880 is an abundant number, since it is smaller than the sum of its proper divisors (104111160).

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

47831880 is a wasteful number, since it uses less digits than its factorization.

47831880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23478 (or 23474 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 47831880 is about 6916.0595717504. The cubic root of 47831880 is about 362.9993245743. Note that the first 3 decimals are identical.

The spelling of 47831880 in words is "forty-seven million, eight hundred thirty-one thousand, eight hundred eighty".