863980198 has 8 divisors (see below), whose sum is σ = 1364179320. Its totient is φ = 409253760.

The previous prime is 863980193. The next prime is 863980213. The reversal of 863980198 is 891089368.

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

It is a super-2 number, since 2×863980198² = 1492923565072238408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863980193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11368123 + ... + 11368198.

It is an arithmetic number, because the mean of its divisors is an integer number (170522415).

Almost surely, 2^863980198 is an apocalyptic number.

863980198 is a deficient number, since it is larger than the sum of its proper divisors (500199122).

863980198 is a wasteful number, since it uses less digits than its factorization.

863980198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22736342.

The product of its (nonzero) digits is 746496, while the sum is 52.

The square root of 863980198 is about 29393.5400726078. The cubic root of 863980198 is about 952.4333548023.

The spelling of 863980198 in words is "eight hundred sixty-three million, nine hundred eighty thousand, one hundred ninety-eight".