863971222 has 8 divisors (see below), whose sum is σ = 1326095496. Its totient is φ = 421939392.

The previous prime is 863971189. The next prime is 863971247. The reversal of 863971222 is 222179368.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5023003 + ... + 5023174.

It is an arithmetic number, because the mean of its divisors is an integer number (165761937).

Almost surely, 2^863971222 is an apocalyptic number.

863971222 is a deficient number, since it is larger than the sum of its proper divisors (462124274).

863971222 is a wasteful number, since it uses less digits than its factorization.

863971222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10046222.

The product of its digits is 72576, while the sum is 40.

The square root of 863971222 is about 29393.3873856009. The cubic root of 863971222 is about 952.4300564738.

The spelling of 863971222 in words is "eight hundred sixty-three million, nine hundred seventy-one thousand, two hundred twenty-two".