9873947 has 2 divisors, whose sum is σ = 9873948. Its totient is φ = 9873946.

The previous prime is 9873943. The next prime is 9873967. The reversal of 9873947 is 7493789.

9873947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9873947 - 2² = 9873943 is a prime.

It is a super-3 number, since 3×9873947³ (a number of 22 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9873943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4936973 + 4936974.

It is an arithmetic number, because the mean of its divisors is an integer number (4936974).

Almost surely, 2^9873947 is an apocalyptic number.

9873947 is a deficient number, since it is larger than the sum of its proper divisors (1).

9873947 is an equidigital number, since it uses as much as digits as its factorization.

9873947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 47.

The square root of 9873947 is about 3142.2837236634. The cubic root of 9873947 is about 214.5343953335.

The spelling of 9873947 in words is "nine million, eight hundred seventy-three thousand, nine hundred forty-seven".