8198423923 has 2 divisors, whose sum is σ = 8198423924. Its totient is φ = 8198423922.

The previous prime is 8198423887. The next prime is 8198423957. The reversal of 8198423923 is 3293248918.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8198423923 is a prime.

It is a super-3 number, since 3×8198423923³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (8198423963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4099211961 + 4099211962.

It is an arithmetic number, because the mean of its divisors is an integer number (4099211962).

Almost surely, 2^8198423923 is an apocalyptic number.

8198423923 is a deficient number, since it is larger than the sum of its proper divisors (1).

8198423923 is an equidigital number, since it uses as much as digits as its factorization.

8198423923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 49.

The square root of 8198423923 is about 90545.1485337564. The cubic root of 8198423923 is about 2016.4004715724.

The spelling of 8198423923 in words is "eight billion, one hundred ninety-eight million, four hundred twenty-three thousand, nine hundred twenty-three".