863346320 has 40 divisors (see below), whose sum is σ = 2112930240. Its totient is φ = 327162240.

The previous prime is 863346251. The next prime is 863346353. The reversal of 863346320 is 23643368.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282476 + ... + 285515.

It is an arithmetic number, because the mean of its divisors is an integer number (52823256).

Almost surely, 2^863346320 is an apocalyptic number.

863346320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

863346320 is an abundant number, since it is smaller than the sum of its proper divisors (1249583920).

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

863346320 is a wasteful number, since it uses less digits than its factorization.

863346320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568023 (or 568017 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 863346320 is about 29382.7554868498. The cubic root of 863346320 is about 952.2003732835.

Adding to 863346320 its reverse (23643368), we get a palindrome (886989688).

The spelling of 863346320 in words is "eight hundred sixty-three million, three hundred forty-six thousand, three hundred twenty".