3842197243 has 2 divisors, whose sum is σ = 3842197244. Its totient is φ = 3842197242.

The previous prime is 3842197241. The next prime is 3842197277. The reversal of 3842197243 is 3427912483.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3842197243 - 2¹ = 3842197241 is a prime.

Together with 3842197241, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3842197243.

It is not a weakly prime, because it can be changed into another prime (3842197241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1921098621 + 1921098622.

It is an arithmetic number, because the mean of its divisors is an integer number (1921098622).

Almost surely, 2^3842197243 is an apocalyptic number.

3842197243 is a deficient number, since it is larger than the sum of its proper divisors (1).

3842197243 is an equidigital number, since it uses as much as digits as its factorization.

3842197243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 43.

The square root of 3842197243 is about 61985.4599321486. The cubic root of 3842197243 is about 1566.2456771402.

The spelling of 3842197243 in words is "three billion, eight hundred forty-two million, one hundred ninety-seven thousand, two hundred forty-three".