47484991 has 2 divisors, whose sum is σ = 47484992. Its totient is φ = 47484990.

The previous prime is 47484923. The next prime is 47485001. The reversal of 47484991 is 19948474.

47484991 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 not a de Polignac number, because 47484991 - 2⁷ = 47484863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47484391) 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, 23742495 + 23742496.

It is an arithmetic number, because the mean of its divisors is an integer number (23742496).

Almost surely, 2^47484991 is an apocalyptic number.

47484991 is a deficient number, since it is larger than the sum of its proper divisors (1).

47484991 is an equidigital number, since it uses as much as digits as its factorization.

47484991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 46.

The square root of 47484991 is about 6890.9354227129. The cubic root of 47484991 is about 362.1196734046.

The spelling of 47484991 in words is "forty-seven million, four hundred eighty-four thousand, nine hundred ninety-one".