47889912 has 64 divisors (see below), whose sum is σ = 137617920. Its totient is φ = 13603968.

The previous prime is 47889893. The next prime is 47889929. The reversal of 47889912 is 21998874.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32373 + ... + 33819.

It is an arithmetic number, because the mean of its divisors is an integer number (2150280).

Almost surely, 2^47889912 is an apocalyptic number.

47889912 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47889912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68808960).

47889912 is an abundant number, since it is smaller than the sum of its proper divisors (89728008).

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

47889912 is a wasteful number, since it uses less digits than its factorization.

47889912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660 (or 1656 counting only the distinct ones).

The product of its digits is 290304, while the sum is 48.

The square root of 47889912 is about 6920.2537525730. The cubic root of 47889912 is about 363.1460681498.

The spelling of 47889912 in words is "forty-seven million, eight hundred eighty-nine thousand, nine hundred twelve".