47211643 has 2 divisors, whose sum is σ = 47211644. Its totient is φ = 47211642.

The previous prime is 47211631. The next prime is 47211691. The reversal of 47211643 is 34611274.

47211643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47211643 - 2⁵ = 47211611 is a prime.

It is not a weakly prime, because it can be changed into another prime (47211613) 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 as a sum of consecutive naturals, namely, 23605821 + 23605822.

It is an arithmetic number, because the mean of its divisors is an integer number (23605822).

Almost surely, 2^47211643 is an apocalyptic number.

47211643 is a deficient number, since it is larger than the sum of its proper divisors (1).

47211643 is an equidigital number, since it uses as much as digits as its factorization.

47211643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 28.

The square root of 47211643 is about 6871.0729147637. The cubic root of 47211643 is about 361.4234868712.

The spelling of 47211643 in words is "forty-seven million, two hundred eleven thousand, six hundred forty-three".