8198228939 has 2 divisors, whose sum is σ = 8198228940. Its totient is φ = 8198228938.

The previous prime is 8198228917. The next prime is 8198228959. The reversal of 8198228939 is 9398228918.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8198228939 - 2²⁸ = 7929793483 is a prime.

It is not a weakly prime, because it can be changed into another prime (8198228959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4099114469 + 4099114470.

It is an arithmetic number, because the mean of its divisors is an integer number (4099114470).

Almost surely, 2^8198228939 is an apocalyptic number.

8198228939 is a deficient number, since it is larger than the sum of its proper divisors (1).

8198228939 is an equidigital number, since it uses as much as digits as its factorization.

8198228939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4478976, while the sum is 59.

The square root of 8198228939 is about 90544.0718048399. The cubic root of 8198228939 is about 2016.3844860224.

The spelling of 8198228939 in words is "eight billion, one hundred ninety-eight million, two hundred twenty-eight thousand, nine hundred thirty-nine".