47847990 has 16 divisors (see below), whose sum is σ = 114835248. Its totient is φ = 12759456.

The previous prime is 47847937. The next prime is 47848001. The reversal of 47847990 is 9974874.

It is a happy number.

47847990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797437 + ... + 797496.

It is an arithmetic number, because the mean of its divisors is an integer number (7177203).

Almost surely, 2^47847990 is an apocalyptic number.

47847990 is an abundant number, since it is smaller than the sum of its proper divisors (66987258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47847990 is a wasteful number, since it uses less digits than its factorization.

47847990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594943.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 47847990 is about 6917.2241542399. The cubic root of 47847990 is about 363.0400732877.

The spelling of 47847990 in words is "forty-seven million, eight hundred forty-seven thousand, nine hundred ninety".