47919885 has 32 divisors (see below), whose sum is σ = 82911360. Its totient is φ = 23493888.

The previous prime is 47919871. The next prime is 47919917. The reversal of 47919885 is 58891974.

It is not a de Polignac number, because 47919885 - 2⁴ = 47919869 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77106 + ... + 77724.

It is an arithmetic number, because the mean of its divisors is an integer number (2590980).

Almost surely, 2^47919885 is an apocalyptic number.

It is an amenable number.

47919885 is a deficient number, since it is larger than the sum of its proper divisors (34991475).

47919885 is a wasteful number, since it uses less digits than its factorization.

47919885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037.

The product of its digits is 725760, while the sum is 51.

The square root of 47919885 is about 6922.4190136108. The cubic root of 47919885 is about 363.2218134487.

The spelling of 47919885 in words is "forty-seven million, nine hundred nineteen thousand, eight hundred eighty-five".