47094809 has 2 divisors, whose sum is σ = 47094810. Its totient is φ = 47094808.

The previous prime is 47094779. The next prime is 47094833. The reversal of 47094809 is 90849074.

47094809 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 can be written as a sum of positive squares in only one way, i.e., 26419600 + 20675209 = 5140^2 + 4547^2 .

It is a cyclic number.

It is not a de Polignac number, because 47094809 - 2²⁰ = 46046233 is a prime.

It is not a weakly prime, because it can be changed into another prime (47094889) 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, 23547404 + 23547405.

It is an arithmetic number, because the mean of its divisors is an integer number (23547405).

Almost surely, 2^47094809 is an apocalyptic number.

It is an amenable number.

47094809 is a deficient number, since it is larger than the sum of its proper divisors (1).

47094809 is an equidigital number, since it uses as much as digits as its factorization.

47094809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 47094809 is about 6862.5657738196. The cubic root of 47094809 is about 361.1251040328.

The spelling of 47094809 in words is "forty-seven million, ninety-four thousand, eight hundred nine".