863963850 has 24 divisors (see below), whose sum is σ = 2142630720. Its totient is φ = 230390320.

The previous prime is 863963803. The next prime is 863963857. The reversal of 863963850 is 58369368.

It is a self number, because there is not a number n which added to its sum of digits gives 863963850.

It is not an unprimeable number, because it can be changed into a prime (863963857) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2879730 + ... + 2880029.

It is an arithmetic number, because the mean of its divisors is an integer number (89276280).

Almost surely, 2^863963850 is an apocalyptic number.

863963850 is an abundant number, since it is smaller than the sum of its proper divisors (1278666870).

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

863963850 is a wasteful number, since it uses less digits than its factorization.

863963850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5759774 (or 5759769 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 48.

The square root of 863963850 is about 29393.2619829783. The cubic root of 863963850 is about 952.4273475355.

The spelling of 863963850 in words is "eight hundred sixty-three million, nine hundred sixty-three thousand, eight hundred fifty".