47189688 has 256 divisors, whose sum is σ = 162570240. Its totient is φ = 11059200.

The previous prime is 47189687. The next prime is 47189693. The reversal of 47189688 is 88698174.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 47189688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47189683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1150948 + ... + 1150988.

It is an arithmetic number, because the mean of its divisors is an integer number (635040).

Almost surely, 2^47189688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47189688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81285120).

47189688 is an abundant number, since it is smaller than the sum of its proper divisors (115380552).

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

47189688 is a wasteful number, since it uses less digits than its factorization.

47189688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 114 counting only the distinct ones).

The product of its digits is 774144, while the sum is 51.

The square root of 47189688 is about 6869.4750891171. The cubic root of 47189688 is about 361.3674534968.

The spelling of 47189688 in words is "forty-seven million, one hundred eighty-nine thousand, six hundred eighty-eight".