47789920 has 24 divisors (see below), whose sum is σ = 112904064. Its totient is φ = 19115904.

The previous prime is 47789909. The next prime is 47789923. The reversal of 47789920 is 2998774.

47789920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47789923) 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 3 ways as a sum of consecutive naturals, for example, 149184 + ... + 149503.

It is an arithmetic number, because the mean of its divisors is an integer number (4704336).

Almost surely, 2^47789920 is an apocalyptic number.

47789920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47789920 is an abundant number, since it is smaller than the sum of its proper divisors (65114144).

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

47789920 is a wasteful number, since it uses less digits than its factorization.

47789920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298702 (or 298694 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 47789920 is about 6913.0253869055. The cubic root of 47789920 is about 362.8931477755.

The spelling of 47789920 in words is "forty-seven million, seven hundred eighty-nine thousand, nine hundred twenty".