8723421167 has 2 divisors, whose sum is σ = 8723421168. Its totient is φ = 8723421166.

The previous prime is 8723421149. The next prime is 8723421197. The reversal of 8723421167 is 7611243278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8723421167 - 2¹⁰ = 8723420143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8723421197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4361710583 + 4361710584.

It is an arithmetic number, because the mean of its divisors is an integer number (4361710584).

Almost surely, 2^8723421167 is an apocalyptic number.

8723421167 is a deficient number, since it is larger than the sum of its proper divisors (1).

8723421167 is an equidigital number, since it uses as much as digits as its factorization.

8723421167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 41.

The square root of 8723421167 is about 93399.2567796982. The cubic root of 8723421167 is about 2058.5540774772.

The spelling of 8723421167 in words is "eight billion, seven hundred twenty-three million, four hundred twenty-one thousand, one hundred sixty-seven".