9873691847 has 2 divisors, whose sum is σ = 9873691848. Its totient is φ = 9873691846.

The previous prime is 9873691837. The next prime is 9873691853. The reversal of 9873691847 is 7481963789.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9873691847 - 2⁸ = 9873691591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9873691847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9873691837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4936845923 + 4936845924.

It is an arithmetic number, because the mean of its divisors is an integer number (4936845924).

Almost surely, 2^9873691847 is an apocalyptic number.

9873691847 is a deficient number, since it is larger than the sum of its proper divisors (1).

9873691847 is an equidigital number, since it uses as much as digits as its factorization.

9873691847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18289152, while the sum is 62.

The square root of 9873691847 is about 99366.4523216966. The cubic root of 9873691847 is about 2145.3254738734.

The spelling of 9873691847 in words is "nine billion, eight hundred seventy-three million, six hundred ninety-one thousand, eight hundred forty-seven".