861323318 has 8 divisors (see below), whose sum is σ = 1292382840. Its totient is φ = 430529040.

The previous prime is 861323303. The next prime is 861323327. The reversal of 861323318 is 813323168.

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

It is a Curzon number.

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, 57983 + ... + 71306.

It is an arithmetic number, because the mean of its divisors is an integer number (161547855).

Almost surely, 2^861323318 is an apocalyptic number.

861323318 is a deficient number, since it is larger than the sum of its proper divisors (431059522).

861323318 is a wasteful number, since it uses less digits than its factorization.

861323318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132622.

The product of its digits is 20736, while the sum is 35.

The square root of 861323318 is about 29348.3103091132. The cubic root of 861323318 is about 951.4560563721.

The spelling of 861323318 in words is "eight hundred sixty-one million, three hundred twenty-three thousand, three hundred eighteen".