47105939 has 2 divisors, whose sum is σ = 47105940. Its totient is φ = 47105938.

The previous prime is 47105911. The next prime is 47105977. The reversal of 47105939 is 93950174.

It is a happy number.

It is an a-pointer prime, because the next prime (47105977) can be obtained adding 47105939 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47105939 - 2¹⁶ = 47040403 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47107939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23552969 + 23552970.

It is an arithmetic number, because the mean of its divisors is an integer number (23552970).

Almost surely, 2^47105939 is an apocalyptic number.

47105939 is a deficient number, since it is larger than the sum of its proper divisors (1).

47105939 is an equidigital number, since it uses as much as digits as its factorization.

47105939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 47105939 is about 6863.3766471031. The cubic root of 47105939 is about 361.1535502381.

The spelling of 47105939 in words is "forty-seven million, one hundred five thousand, nine hundred thirty-nine".