863198884 has 12 divisors (see below), whose sum is σ = 1510959744. Its totient is φ = 431496104.

The previous prime is 863198857. The next prime is 863198893. The reversal of 863198884 is 488891368.

It is a super-2 number, since 2×863198884² = 1490224626677690912, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5212 + ... + 41875.

It is an arithmetic number, because the mean of its divisors is an integer number (125913312).

Almost surely, 2^863198884 is an apocalyptic number.

It is an amenable number.

863198884 is a deficient number, since it is larger than the sum of its proper divisors (647760860).

863198884 is a wasteful number, since it uses less digits than its factorization.

863198884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51674 (or 51672 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 55.

The square root of 863198884 is about 29380.2464931797. The cubic root of 863198884 is about 952.1461669150.

The spelling of 863198884 in words is "eight hundred sixty-three million, one hundred ninety-eight thousand, eight hundred eighty-four".