318464789 has 4 divisors (see below), whose sum is σ = 319318956. Its totient is φ = 317610624.

The previous prime is 318464779. The next prime is 318464803. The reversal of 318464789 is 987464813.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 161163025 + 157301764 = 12695^2 + 12542^2 .

It is a cyclic number.

It is not a de Polignac number, because 318464789 - 2¹² = 318460693 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 (318464759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426524 + ... + 427269.

It is an arithmetic number, because the mean of its divisors is an integer number (79829739).

Almost surely, 2^318464789 is an apocalyptic number.

It is an amenable number.

318464789 is a deficient number, since it is larger than the sum of its proper divisors (854167).

318464789 is an equidigital number, since it uses as much as digits as its factorization.

318464789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854166.

The product of its digits is 1161216, while the sum is 50.

The square root of 318464789 is about 17845.5817781321. The cubic root of 318464789 is about 682.8948023253.

The spelling of 318464789 in words is "three hundred eighteen million, four hundred sixty-four thousand, seven hundred eighty-nine".