47438047 has 2 divisors, whose sum is σ = 47438048. Its totient is φ = 47438046.

The previous prime is 47437991. The next prime is 47438057. The reversal of 47438047 is 74083474.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47438047 - 2⁷ = 47437919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47437997 and 47438015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47438057) 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, 23719023 + 23719024.

It is an arithmetic number, because the mean of its divisors is an integer number (23719024).

Almost surely, 2^47438047 is an apocalyptic number.

47438047 is a deficient number, since it is larger than the sum of its proper divisors (1).

47438047 is an equidigital number, since it uses as much as digits as its factorization.

47438047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 37.

The square root of 47438047 is about 6887.5283665478. The cubic root of 47438047 is about 362.0003026971. Note that the first 3 decimals are identical.

The spelling of 47438047 in words is "forty-seven million, four hundred thirty-eight thousand, forty-seven".