9839473867 has 2 divisors, whose sum is σ = 9839473868. Its totient is φ = 9839473866.

The previous prime is 9839473799. The next prime is 9839473909. The reversal of 9839473867 is 7683749389.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9839473867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9839473799 and 9839473808.

It is not a weakly prime, because it can be changed into another prime (9839470867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4919736933 + 4919736934.

It is an arithmetic number, because the mean of its divisors is an integer number (4919736934).

Almost surely, 2^9839473867 is an apocalyptic number.

9839473867 is a deficient number, since it is larger than the sum of its proper divisors (1).

9839473867 is an equidigital number, since it uses as much as digits as its factorization.

9839473867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54867456, while the sum is 64.

The square root of 9839473867 is about 99194.1221393687. The cubic root of 9839473867 is about 2142.8443462476.

The spelling of 9839473867 in words is "nine billion, eight hundred thirty-nine million, four hundred seventy-three thousand, eight hundred sixty-seven".