47889071 has 4 divisors (see below), whose sum is σ = 47904792. Its totient is φ = 47873352.

The previous prime is 47889067. The next prime is 47889073. The reversal of 47889071 is 17098874.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47889071 - 2² = 47889067 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47889073) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1661 + ... + 9926.

It is an arithmetic number, because the mean of its divisors is an integer number (11976198).

Almost surely, 2^47889071 is an apocalyptic number.

47889071 is a deficient number, since it is larger than the sum of its proper divisors (15721).

47889071 is a wasteful number, since it uses less digits than its factorization.

47889071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15720.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 47889071 is about 6920.1929886384. The cubic root of 47889071 is about 363.1439423880.

The spelling of 47889071 in words is "forty-seven million, eight hundred eighty-nine thousand, seventy-one".