863878032 has 60 divisors (see below), whose sum is σ = 2420321280. Its totient is φ = 287642304.

The previous prime is 863878007. The next prime is 863878033. The reversal of 863878032 is 230878368.

863878032 is a `hidden beast` number, since 8 + 638 + 7 + 8 + 0 + 3 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (863878033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153769 + ... + 159287.

It is an arithmetic number, because the mean of its divisors is an integer number (40338688).

Almost surely, 2^863878032 is an apocalyptic number.

It is an amenable number.

863878032 is an abundant number, since it is smaller than the sum of its proper divisors (1556443248).

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

863878032 is a wasteful number, since it uses less digits than its factorization.

863878032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6620 (or 6611 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 863878032 is about 29391.8021223606. The cubic root of 863878032 is about 952.3958114488.

The spelling of 863878032 in words is "eight hundred sixty-three million, eight hundred seventy-eight thousand, thirty-two".