863485317 has 24 divisors (see below), whose sum is σ = 1301996280. Its totient is φ = 550903680.

The previous prime is 863485313. The next prime is 863485349. The reversal of 863485317 is 713584368.

863485317 is a `hidden beast` number, since 8 + 634 + 8 + 5 + 3 + 1 + 7 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 278522721 + 584962596 = 16689^2 + 24186^2 .

It is not a de Polignac number, because 863485317 - 2² = 863485313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863485313) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 942 + ... + 41567.

It is an arithmetic number, because the mean of its divisors is an integer number (54249845).

Almost surely, 2^863485317 is an apocalyptic number.

It is an amenable number.

863485317 is a deficient number, since it is larger than the sum of its proper divisors (438510963).

863485317 is a wasteful number, since it uses less digits than its factorization.

863485317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42613 (or 42610 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 863485317 is about 29385.1206735654. The cubic root of 863485317 is about 952.2514713153.

The spelling of 863485317 in words is "eight hundred sixty-three million, four hundred eighty-five thousand, three hundred seventeen".