863198336 has 128 divisors (see below), whose sum is σ = 2309247360. Its totient is φ = 310394880.

The previous prime is 863198309. The next prime is 863198351. The reversal of 863198336 is 633891368.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×863198336² = 1490222734546337792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124760 + ... + 131496.

It is an arithmetic number, because the mean of its divisors is an integer number (18040995).

Almost surely, 2^863198336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 863198336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1154623680).

863198336 is an abundant number, since it is smaller than the sum of its proper divisors (1446049024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

863198336 is a wasteful number, since it uses less digits than its factorization.

863198336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6782 (or 6770 counting only the distinct ones).

The product of its digits is 559872, while the sum is 47.

The square root of 863198336 is about 29380.2371671843. The cubic root of 863198336 is about 952.1459654256.

The spelling of 863198336 in words is "eight hundred sixty-three million, one hundred ninety-eight thousand, three hundred thirty-six".