47889132 has 12 divisors (see below), whose sum is σ = 111741336. Its totient is φ = 15963040.

The previous prime is 47889109. The next prime is 47889173. The reversal of 47889132 is 23198874.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1995369 + ... + 1995392.

It is an arithmetic number, because the mean of its divisors is an integer number (9311778).

Almost surely, 2^47889132 is an apocalyptic number.

It is an amenable number.

47889132 is an abundant number, since it is smaller than the sum of its proper divisors (63852204).

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

47889132 is a wasteful number, since it uses less digits than its factorization.

47889132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3990768 (or 3990766 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 47889132 is about 6920.1973960285. The cubic root of 47889132 is about 363.1440965761.

The spelling of 47889132 in words is "forty-seven million, eight hundred eighty-nine thousand, one hundred thirty-two".