863198 has 8 divisors (see below), whose sum is σ = 1479792. Its totient is φ = 369936.

The previous prime is 863197. The next prime is 863231. The reversal of 863198 is 891368.

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

It is a super-2 number, since 2×863198² = 1490221574408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30815 + ... + 30842.

It is an arithmetic number, because the mean of its divisors is an integer number (184974).

2⁸⁶³¹⁹⁸ is an apocalyptic number.

863198 is a deficient number, since it is larger than the sum of its proper divisors (616594).

863198 is a wasteful number, since it uses less digits than its factorization.

863198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61666.

The product of its digits is 10368, while the sum is 35.

The square root of 863198 is about 929.0844956192. The cubic root of 863198 is about 95.2145841885.

The spelling of 863198 in words is "eight hundred sixty-three thousand, one hundred ninety-eight".