863663480 has 16 divisors (see below), whose sum is σ = 1943242920. Its totient is φ = 345465376.

The previous prime is 863663477. The next prime is 863663491. The reversal of 863663480 is 84366368.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10795754 + ... + 10795833.

Almost surely, 2^863663480 is an apocalyptic number.

It is an amenable number.

863663480 is an abundant number, since it is smaller than the sum of its proper divisors (1079579440).

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

863663480 is a wasteful number, since it uses less digits than its factorization.

863663480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21591598 (or 21591594 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 44.

The square root of 863663480 is about 29388.1520344509. The cubic root of 863663480 is about 952.3169595209.

The spelling of 863663480 in words is "eight hundred sixty-three million, six hundred sixty-three thousand, four hundred eighty".