47708191 has 2 divisors, whose sum is σ = 47708192. Its totient is φ = 47708190.

The previous prime is 47708131. The next prime is 47708209. The reversal of 47708191 is 19180774.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47708191 - 2¹⁵ = 47675423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47708191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47708131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23854095 + 23854096.

It is an arithmetic number, because the mean of its divisors is an integer number (23854096).

Almost surely, 2^47708191 is an apocalyptic number.

47708191 is a deficient number, since it is larger than the sum of its proper divisors (1).

47708191 is an equidigital number, since it uses as much as digits as its factorization.

47708191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 47708191 is about 6907.1116249848. Note that the first 3 decimals coincide. The cubic root of 47708191 is about 362.6861597926.

The spelling of 47708191 in words is "forty-seven million, seven hundred eight thousand, one hundred ninety-one".