3198839243 has 4 divisors (see below), whose sum is σ = 3199712880. Its totient is φ = 3197965608.

The previous prime is 3198839239. The next prime is 3198839251. The reversal of 3198839243 is 3429388913.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3429388913 = 1021 ⋅3358853.

It is a cyclic number.

It is not a de Polignac number, because 3198839243 - 2² = 3198839239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3198839191 and 3198839200.

It is not an unprimeable number, because it can be changed into a prime (3198839213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431303 + ... + 438656.

It is an arithmetic number, because the mean of its divisors is an integer number (799928220).

Almost surely, 2^3198839243 is an apocalyptic number.

3198839243 is a deficient number, since it is larger than the sum of its proper divisors (873637).

3198839243 is an equidigital number, since it uses as much as digits as its factorization.

3198839243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873636.

The product of its digits is 1119744, while the sum is 50.

The square root of 3198839243 is about 56558.2818250343. The cubic root of 3198839243 is about 1473.4344001850.

The spelling of 3198839243 in words is "three billion, one hundred ninety-eight million, eight hundred thirty-nine thousand, two hundred forty-three".