47487720 has 64 divisors (see below), whose sum is σ = 162817920. Its totient is φ = 10854144.

The previous prime is 47487701. The next prime is 47487721. The reversal of 47487720 is 2778474.

47487720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (47487721) 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 15 ways as a sum of consecutive naturals, for example, 27427 + ... + 29106.

It is an arithmetic number, because the mean of its divisors is an integer number (2544030).

Almost surely, 2^47487720 is an apocalyptic number.

47487720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47487720 is an abundant number, since it is smaller than the sum of its proper divisors (115330200).

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

47487720 is a wasteful number, since it uses less digits than its factorization.

47487720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56554 (or 56550 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 39.

The square root of 47487720 is about 6891.1334336232. The cubic root of 47487720 is about 362.1266103731.

The spelling of 47487720 in words is "forty-seven million, four hundred eighty-seven thousand, seven hundred twenty".