47427047 has 2 divisors, whose sum is σ = 47427048. Its totient is φ = 47427046.

The previous prime is 47426999. The next prime is 47427049. The reversal of 47427047 is 74072474.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47427047 - 2¹⁴ = 47410663 is a prime.

Together with 47427049, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_2855825 and since 47427047 and 2855825 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 47426998 and 47427016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47427049) 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, 23713523 + 23713524.

It is an arithmetic number, because the mean of its divisors is an integer number (23713524).

Almost surely, 2^47427047 is an apocalyptic number.

47427047 is a deficient number, since it is larger than the sum of its proper divisors (1).

47427047 is an equidigital number, since it uses as much as digits as its factorization.

47427047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43904, while the sum is 35.

The square root of 47427047 is about 6886.7297754449. The cubic root of 47427047 is about 361.9723201570.

The spelling of 47427047 in words is "forty-seven million, four hundred twenty-seven thousand, forty-seven".