47889432 has 24 divisors (see below), whose sum is σ = 129700740. Its totient is φ = 15963120.

The previous prime is 47889409. The next prime is 47889437. The reversal of 47889432 is 23498874.

47889432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47889437) 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 5 ways as a sum of consecutive naturals, for example, 332494 + ... + 332637.

Almost surely, 2^47889432 is an apocalyptic number.

It is an amenable number.

47889432 is an abundant number, since it is smaller than the sum of its proper divisors (81811308).

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

47889432 is a wasteful number, since it uses less digits than its factorization.

47889432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665143 (or 665136 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 47889432 is about 6920.2190716768. The cubic root of 47889432 is about 363.1448548762.

The spelling of 47889432 in words is "forty-seven million, eight hundred eighty-nine thousand, four hundred thirty-two".