47819873 has 4 divisors (see below), whose sum is σ = 49112340. Its totient is φ = 46527408.

The previous prime is 47819867. The next prime is 47819909. The reversal of 47819873 is 37891874.

47819873 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: 37891874 = 2 ⋅18945937.

It can be written as a sum of positive squares in 2 ways, for example, as 38651089 + 9168784 = 6217^2 + 3028^2 .

It is a cyclic number.

It is not a de Polignac number, because 47819873 - 2⁶ = 47819809 is a prime.

It is a super-2 number, since 2×47819873² = 4573480507472258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47819813) 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, 646178 + ... + 646251.

It is an arithmetic number, because the mean of its divisors is an integer number (12278085).

Almost surely, 2^47819873 is an apocalyptic number.

It is an amenable number.

47819873 is a deficient number, since it is larger than the sum of its proper divisors (1292467).

47819873 is a wasteful number, since it uses less digits than its factorization.

47819873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292466.

The product of its digits is 338688, while the sum is 47.

The square root of 47819873 is about 6915.1914651729. The cubic root of 47819873 is about 362.9689480581.

The spelling of 47819873 in words is "forty-seven million, eight hundred nineteen thousand, eight hundred seventy-three".