47855873 has 8 divisors (see below), whose sum is σ = 52510248. Its totient is φ = 43340544.

The previous prime is 47855869. The next prime is 47855879. The reversal of 47855873 is 37855874.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 425104 + 47430769 = 652^2 + 6887^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47855873 - 2² = 47855869 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47855879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34040 + ... + 35417.

It is an arithmetic number, because the mean of its divisors is an integer number (6563781).

Almost surely, 2^47855873 is an apocalyptic number.

It is an amenable number.

47855873 is a deficient number, since it is larger than the sum of its proper divisors (4654375).

47855873 is a wasteful number, since it uses less digits than its factorization.

47855873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69523.

The product of its digits is 940800, while the sum is 47.

The square root of 47855873 is about 6917.7939402674. The cubic root of 47855873 is about 363.0600092540.

Subtracting from 47855873 its reverse (37855874), we obtain a palindrome (9999999).

It can be divided in two parts, 4785587 and 3, that multiplied together give a triangular number (14356761 = T₅₃₅₈).

The spelling of 47855873 in words is "forty-seven million, eight hundred fifty-five thousand, eight hundred seventy-three".