863442912 has 24 divisors (see below), whose sum is σ = 2266537896. Its totient is φ = 287814272.

The previous prime is 863442893. The next prime is 863442913. The reversal of 863442912 is 219244368.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863442913) 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 3 ways as a sum of consecutive naturals, for example, 4497003 + ... + 4497194.

It is an arithmetic number, because the mean of its divisors is an integer number (94439079).

Almost surely, 2^863442912 is an apocalyptic number.

It is an amenable number.

863442912 is an abundant number, since it is smaller than the sum of its proper divisors (1403094984).

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

863442912 is a wasteful number, since it uses less digits than its factorization.

863442912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8994210 (or 8994202 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 863442912 is about 29384.3991260669. The cubic root of 863442912 is about 952.2358829844.

The spelling of 863442912 in words is "eight hundred sixty-three million, four hundred forty-two thousand, nine hundred twelve".