47075447 has 2 divisors, whose sum is σ = 47075448. Its totient is φ = 47075446.

The previous prime is 47075309. The next prime is 47075449. The reversal of 47075447 is 74457074.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47075447 - 2¹⁴ = 47059063 is a prime.

Together with 47075449, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47075447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47075449) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23537723 + 23537724.

It is an arithmetic number, because the mean of its divisors is an integer number (23537724).

Almost surely, 2^47075447 is an apocalyptic number.

47075447 is a deficient number, since it is larger than the sum of its proper divisors (1).

47075447 is an equidigital number, since it uses as much as digits as its factorization.

47075447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 109760, while the sum is 38.

The square root of 47075447 is about 6861.1549319338. The cubic root of 47075447 is about 361.0756076881.

The spelling of 47075447 in words is "forty-seven million, seventy-five thousand, four hundred forty-seven".