47881889 has 8 divisors (see below), whose sum is σ = 53091840. Its totient is φ = 42814800.

The previous prime is 47881879. The next prime is 47881907. The reversal of 47881889 is 98818874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47881889 - 2⁸ = 47881633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47881889.

It is not an unprimeable number, because it can be changed into a prime (47881849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35009 + ... + 36350.

It is an arithmetic number, because the mean of its divisors is an integer number (6636480).

Almost surely, 2^47881889 is an apocalyptic number.

It is an amenable number.

47881889 is a deficient number, since it is larger than the sum of its proper divisors (5209951).

47881889 is a wasteful number, since it uses less digits than its factorization.

47881889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71431.

The product of its digits is 1032192, while the sum is 53.

The square root of 47881889 is about 6919.6740530172. The cubic root of 47881889 is about 363.1257877226.

The spelling of 47881889 in words is "forty-seven million, eight hundred eighty-one thousand, eight hundred eighty-nine".