8719170923 has 2 divisors, whose sum is σ = 8719170924. Its totient is φ = 8719170922.

The previous prime is 8719170917. The next prime is 8719170959. The reversal of 8719170923 is 3290719178.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8719170923 is a prime.

It is not a weakly prime, because it can be changed into another prime (8719170973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4359585461 + 4359585462.

It is an arithmetic number, because the mean of its divisors is an integer number (4359585462).

Almost surely, 2^8719170923 is an apocalyptic number.

8719170923 is a deficient number, since it is larger than the sum of its proper divisors (1).

8719170923 is an equidigital number, since it uses as much as digits as its factorization.

8719170923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 8719170923 is about 93376.5009143093. The cubic root of 8719170923 is about 2058.2196987859.

The spelling of 8719170923 in words is "eight billion, seven hundred nineteen million, one hundred seventy thousand, nine hundred twenty-three".