47019885 has 16 divisors (see below), whose sum is σ = 82071360. Its totient is φ = 22797440.

The previous prime is 47019871. The next prime is 47019887. The reversal of 47019885 is 58891074.

It is not a de Polignac number, because 47019885 - 2⁵ = 47019853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47019887) 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 15 ways as a sum of consecutive naturals, for example, 142320 + ... + 142649.

It is an arithmetic number, because the mean of its divisors is an integer number (5129460).

Almost surely, 2^47019885 is an apocalyptic number.

It is an amenable number.

47019885 is a deficient number, since it is larger than the sum of its proper divisors (35051475).

47019885 is a wasteful number, since it uses less digits than its factorization.

47019885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284988.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 47019885 is about 6857.1047097153. The cubic root of 47019885 is about 360.9334955235.

The spelling of 47019885 in words is "forty-seven million, nineteen thousand, eight hundred eighty-five".