561198829 has 8 divisors (see below), whose sum is σ = 564135840. Its totient is φ = 558268656.

The previous prime is 561198791. The next prime is 561198851. The reversal of 561198829 is 928891165.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561198829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561198329) 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 in 7 ways as a sum of consecutive naturals, for example, 253642 + ... + 255844.

It is an arithmetic number, because the mean of its divisors is an integer number (70516980).

Almost surely, 2^561198829 is an apocalyptic number.

It is an amenable number.

561198829 is a deficient number, since it is larger than the sum of its proper divisors (2937011).

561198829 is a wasteful number, since it uses less digits than its factorization.

561198829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3419.

The product of its digits is 311040, while the sum is 49.

The square root of 561198829 is about 23689.6354763006. The cubic root of 561198829 is about 824.8448212572.

The spelling of 561198829 in words is "five hundred sixty-one million, one hundred ninety-eight thousand, eight hundred twenty-nine".