47861973 has 6 divisors (see below), whose sum is σ = 69133974. Its totient is φ = 31907976.

The previous prime is 47861971. The next prime is 47862013. The reversal of 47861973 is 37916874.

47861973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 47858724 + 3249 = 6918^2 + 57^2 .

It is not a de Polignac number, because 47861973 - 2¹ = 47861971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47861971) 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 5 ways as a sum of consecutive naturals, for example, 2658990 + ... + 2659007.

It is an arithmetic number, because the mean of its divisors is an integer number (11522329).

Almost surely, 2^47861973 is an apocalyptic number.

It is an amenable number.

47861973 is a deficient number, since it is larger than the sum of its proper divisors (21272001).

47861973 is a wasteful number, since it uses less digits than its factorization.

47861973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5318003 (or 5318000 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 47861973 is about 6918.2348182177. The cubic root of 47861973 is about 363.0754345427.

The spelling of 47861973 in words is "forty-seven million, eight hundred sixty-one thousand, nine hundred seventy-three".