47219903 has 2 divisors, whose sum is σ = 47219904. Its totient is φ = 47219902.

The previous prime is 47219869. The next prime is 47219911. The reversal of 47219903 is 30991274.

47219903 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47219903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47219933) 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, 23609951 + 23609952.

It is an arithmetic number, because the mean of its divisors is an integer number (23609952).

Almost surely, 2^47219903 is an apocalyptic number.

47219903 is a deficient number, since it is larger than the sum of its proper divisors (1).

47219903 is an equidigital number, since it uses as much as digits as its factorization.

47219903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 47219903 is about 6871.6739590874. The cubic root of 47219903 is about 361.4445634794. Note that the first 3 decimals are identical.

The spelling of 47219903 in words is "forty-seven million, two hundred nineteen thousand, nine hundred three".