47189943 has 18 divisors (see below), whose sum is σ = 72412704. Its totient is φ = 29607744.

The previous prime is 47189941. The next prime is 47189983. The reversal of 47189943 is 34998174.

It is not a de Polignac number, because 47189943 - 2¹ = 47189941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47189941) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6471 + ... + 11672.

It is an arithmetic number, because the mean of its divisors is an integer number (4022928).

Almost surely, 2^47189943 is an apocalyptic number.

47189943 is a deficient number, since it is larger than the sum of its proper divisors (25222761).

47189943 is a wasteful number, since it uses less digits than its factorization.

47189943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18183 (or 18163 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 47189943 is about 6869.4936494621. The cubic root of 47189943 is about 361.3681044055.

The spelling of 47189943 in words is "forty-seven million, one hundred eighty-nine thousand, nine hundred forty-three".