3198340991 has 8 divisors (see below), whose sum is σ = 3240870720. Its totient is φ = 3155862528.

The previous prime is 3198340967. The next prime is 3198341017. The reversal of 3198340991 is 1990438913.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3198340991 - 2²² = 3194146687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3198340921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122135 + ... + 145991.

It is an arithmetic number, because the mean of its divisors is an integer number (405108840).

Almost surely, 2^3198340991 is an apocalyptic number.

3198340991 is a deficient number, since it is larger than the sum of its proper divisors (42529729).

3198340991 is a wasteful number, since it uses less digits than its factorization.

3198340991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25633.

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 3198340991 is about 56553.8768874425. The cubic root of 3198340991 is about 1473.3578953759.

The spelling of 3198340991 in words is "three billion, one hundred ninety-eight million, three hundred forty thousand, nine hundred ninety-one".