47785873 has 4 divisors (see below), whose sum is σ = 48440548. Its totient is φ = 47131200.

The previous prime is 47785847. The next prime is 47785883. The reversal of 47785873 is 37858774.

47785873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37858774 = 2 ⋅18929387.

It can be written as a sum of positive squares in 2 ways, for example, as 11881809 + 35904064 = 3447^2 + 5992^2 .

It is a cyclic number.

It is not a de Polignac number, because 47785873 - 2⁵ = 47785841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47785883) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 327228 + ... + 327373.

It is an arithmetic number, because the mean of its divisors is an integer number (12110137).

Almost surely, 2^47785873 is an apocalyptic number.

It is an amenable number.

47785873 is a deficient number, since it is larger than the sum of its proper divisors (654675).

47785873 is an equidigital number, since it uses as much as digits as its factorization.

47785873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654674.

The product of its digits is 1317120, while the sum is 49.

The square root of 47785873 is about 6912.7326723952. The cubic root of 47785873 is about 362.8829038438.

It can be divided in two parts, 4 and 7785873, that added together give a palindrome (7785877).

The spelling of 47785873 in words is "forty-seven million, seven hundred eighty-five thousand, eight hundred seventy-three".