863313373 has 8 divisors (see below), whose sum is σ = 931555800. Its totient is φ = 795332928.

The previous prime is 863313359. The next prime is 863313379. The reversal of 863313373 is 373313368.

It can be written as a sum of positive squares in 4 ways, for example, as 125484804 + 737828569 = 11202^2 + 27163^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 863313373 - 2²¹ = 861216221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863313379) 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, 58618 + ... + 71851.

It is an arithmetic number, because the mean of its divisors is an integer number (116444475).

Almost surely, 2^863313373 is an apocalyptic number.

It is an amenable number.

863313373 is a deficient number, since it is larger than the sum of its proper divisors (68242427).

863313373 is a wasteful number, since it uses less digits than its factorization.

863313373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130991.

The product of its digits is 81648, while the sum is 37.

The square root of 863313373 is about 29382.1948295222. The cubic root of 863313373 is about 952.1882605141.

The spelling of 863313373 in words is "eight hundred sixty-three million, three hundred thirteen thousand, three hundred seventy-three".