47257443 has 12 divisors (see below), whose sum is σ = 70614960. Its totient is φ = 30418416.

The previous prime is 47257393. The next prime is 47257481. The reversal of 47257443 is 34475274.

47257443 is a `hidden beast` number, since 47 + 2 + 574 + 43 = 666.

47257443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47257443 - 2²⁴ = 30480227 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 47257398 and 47257407.

It is not an unprimeable number, because it can be changed into a prime (47057443) 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 11 ways as a sum of consecutive naturals, for example, 90271 + ... + 90792.

It is an arithmetic number, because the mean of its divisors is an integer number (5884580).

Almost surely, 2^47257443 is an apocalyptic number.

47257443 is a deficient number, since it is larger than the sum of its proper divisors (23357517).

47257443 is a wasteful number, since it uses less digits than its factorization.

47257443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181098 (or 181095 counting only the distinct ones).

The product of its digits is 94080, while the sum is 36.

The square root of 47257443 is about 6874.4049197003. The cubic root of 47257443 is about 361.5403213692.

The spelling of 47257443 in words is "forty-seven million, two hundred fifty-seven thousand, four hundred forty-three".