47887444 has 36 divisors (see below), whose sum is σ = 92831872. Its totient is φ = 21597840.

The previous prime is 47887421. The next prime is 47887451. The reversal of 47887444 is 44478874.

47887444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 47887394 and 47887403.

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 11 ways as a sum of consecutive naturals, for example, 78589 + ... + 79195.

Almost surely, 2^47887444 is an apocalyptic number.

47887444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

47887444 is a deficient number, since it is larger than the sum of its proper divisors (44944428).

47887444 is a wasteful number, since it uses less digits than its factorization.

47887444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 783 counting only the distinct ones).

The product of its digits is 802816, while the sum is 46.

The square root of 47887444 is about 6920.0754331149. The cubic root of 47887444 is about 363.1398298151.

The spelling of 47887444 in words is "forty-seven million, eight hundred eighty-seven thousand, four hundred forty-four".