47438057 has 2 divisors, whose sum is σ = 47438058. Its totient is φ = 47438056.

The previous prime is 47438047. The next prime is 47438063. The reversal of 47438057 is 75083474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46635241 + 802816 = 6829^2 + 896^2 .

It is a cyclic number.

It is not a de Polignac number, because 47438057 - 2¹⁸ = 47175913 is a prime.

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 47438057.

It is not a weakly prime, because it can be changed into another prime (47438047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23719028 + 23719029.

It is an arithmetic number, because the mean of its divisors is an integer number (23719029).

Almost surely, 2^47438057 is an apocalyptic number.

It is an amenable number.

47438057 is a deficient number, since it is larger than the sum of its proper divisors (1).

47438057 is an equidigital number, since it uses as much as digits as its factorization.

47438057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 47438057 is about 6887.5290924975. The cubic root of 47438057 is about 362.0003281338. Note that the first 3 decimals are identical.

The spelling of 47438057 in words is "forty-seven million, four hundred thirty-eight thousand, fifty-seven".