47600021 has 6 divisors (see below), whose sum is σ = 55371510. Its totient is φ = 40799976.

The previous prime is 47600009. The next prime is 47600027. The reversal of 47600021 is 12000674.

47600021 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., 46771921 + 828100 = 6839^2 + 910^2 .

It is not a de Polignac number, because 47600021 - 2¹⁴ = 47583637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47599966 and 47600002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47600027) 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, 485666 + ... + 485763.

It is an arithmetic number, because the mean of its divisors is an integer number (9228585).

Almost surely, 2^47600021 is an apocalyptic number.

It is an amenable number.

47600021 is a deficient number, since it is larger than the sum of its proper divisors (7771489).

47600021 is an equidigital number, since it uses as much as digits as its factorization.

47600021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971443 (or 971436 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 47600021 is about 6899.2768461629. The cubic root of 47600021 is about 362.4118431684.

Adding to 47600021 its reverse (12000674), we get a palindrome (59600695).

The spelling of 47600021 in words is "forty-seven million, six hundred thousand, twenty-one".