8198891023 has 2 divisors, whose sum is σ = 8198891024. Its totient is φ = 8198891022.

The previous prime is 8198891017. The next prime is 8198891033. The reversal of 8198891023 is 3201988918.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8198891023 - 2¹⁷ = 8198759951 is a prime.

It is a super-3 number, since 3×8198891023³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8198891033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4099445511 + 4099445512.

It is an arithmetic number, because the mean of its divisors is an integer number (4099445512).

Almost surely, 2^8198891023 is an apocalyptic number.

8198891023 is a deficient number, since it is larger than the sum of its proper divisors (1).

8198891023 is an equidigital number, since it uses as much as digits as its factorization.

8198891023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 49.

The square root of 8198891023 is about 90547.7278732051. The cubic root of 8198891023 is about 2016.4387652242.

The spelling of 8198891023 in words is "eight billion, one hundred ninety-eight million, eight hundred ninety-one thousand, twenty-three".