47005247 has 2 divisors, whose sum is σ = 47005248. Its totient is φ = 47005246.

The previous prime is 47005219. The next prime is 47005249. The reversal of 47005247 is 74250074.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47005247 - 2¹² = 47001151 is a prime.

Together with 47005249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47005249) 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, 23502623 + 23502624.

It is an arithmetic number, because the mean of its divisors is an integer number (23502624).

Almost surely, 2^47005247 is an apocalyptic number.

47005247 is a deficient number, since it is larger than the sum of its proper divisors (1).

47005247 is an equidigital number, since it uses as much as digits as its factorization.

47005247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 47005247 is about 6856.0372665265. The cubic root of 47005247 is about 360.8960369542.

The spelling of 47005247 in words is "forty-seven million, five thousand, two hundred forty-seven".