863448686 has 16 divisors (see below), whose sum is σ = 1329568944. Its totient is φ = 420323904.

The previous prime is 863448629. The next prime is 863448689. The reversal of 863448686 is 686844368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863448689) 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 7 ways as a sum of consecutive naturals, for example, 10880 + ... + 42956.

It is an arithmetic number, because the mean of its divisors is an integer number (83098059).

Almost surely, 2^863448686 is an apocalyptic number.

863448686 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

863448686 is a deficient number, since it is larger than the sum of its proper divisors (466120258).

863448686 is a wasteful number, since it uses less digits than its factorization.

863448686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32435.

The product of its digits is 5308416, while the sum is 53.

The square root of 863448686 is about 29384.4973753168. The cubic root of 863448686 is about 952.2380055712.

The spelling of 863448686 in words is "eight hundred sixty-three million, four hundred forty-eight thousand, six hundred eighty-six".