47947073 has 2 divisors, whose sum is σ = 47947074. Its totient is φ = 47947072.

The previous prime is 47947061. The next prime is 47947087. The reversal of 47947073 is 37074974.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42601729 + 5345344 = 6527^2 + 2312^2 .

It is a cyclic number.

It is not a de Polignac number, because 47947073 - 2¹⁰ = 47946049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47947073.

It is not a weakly prime, because it can be changed into another prime (47947043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23973536 + 23973537.

It is an arithmetic number, because the mean of its divisors is an integer number (23973537).

Almost surely, 2^47947073 is an apocalyptic number.

It is an amenable number.

47947073 is a deficient number, since it is larger than the sum of its proper divisors (1).

47947073 is an equidigital number, since it uses as much as digits as its factorization.

47947073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 47947073 is about 6924.3824995446. The cubic root of 47947073 is about 363.2904934106.

The spelling of 47947073 in words is "forty-seven million, nine hundred forty-seven thousand, seventy-three".