8371712047 has 2 divisors, whose sum is σ = 8371712048. Its totient is φ = 8371712046.

The previous prime is 8371711991. The next prime is 8371712057. The reversal of 8371712047 is 7402171738.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8371712047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8371712057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4185856023 + 4185856024.

It is an arithmetic number, because the mean of its divisors is an integer number (4185856024).

Almost surely, 2^8371712047 is an apocalyptic number.

8371712047 is a deficient number, since it is larger than the sum of its proper divisors (1).

8371712047 is an equidigital number, since it uses as much as digits as its factorization.

8371712047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 8371712047 is about 91497.0603188977. The cubic root of 8371712047 is about 2030.5082606264.

The spelling of 8371712047 in words is "eight billion, three hundred seventy-one million, seven hundred twelve thousand, forty-seven".