863947198 has 8 divisors (see below), whose sum is σ = 1298697192. Its totient is φ = 431048136.

The previous prime is 863947193. The next prime is 863947199. The reversal of 863947198 is 891749368.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863947193) 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, 461565 + ... + 463432.

It is an arithmetic number, because the mean of its divisors is an integer number (162337149).

Almost surely, 2^863947198 is an apocalyptic number.

863947198 is a deficient number, since it is larger than the sum of its proper divisors (434749994).

863947198 is a wasteful number, since it uses less digits than its factorization.

863947198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925466.

The product of its digits is 2612736, while the sum is 55.

The square root of 863947198 is about 29392.9787194153. The cubic root of 863947198 is about 952.4212284823.

The spelling of 863947198 in words is "eight hundred sixty-three million, nine hundred forty-seven thousand, one hundred ninety-eight".