318798349 has 2 divisors, whose sum is σ = 318798350. Its totient is φ = 318798348.

The previous prime is 318798313. The next prime is 318798367. The reversal of 318798349 is 943897813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 262278025 + 56520324 = 16195^2 + 7518^2 .

It is an emirp because it is prime and its reverse (943897813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 318798349 - 2¹¹ = 318796301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 318798296 and 318798305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318798379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159399174 + 159399175.

It is an arithmetic number, because the mean of its divisors is an integer number (159399175).

Almost surely, 2^318798349 is an apocalyptic number.

It is an amenable number.

318798349 is a deficient number, since it is larger than the sum of its proper divisors (1).

318798349 is an equidigital number, since it uses as much as digits as its factorization.

318798349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 52.

The square root of 318798349 is about 17854.9250628503. The cubic root of 318798349 is about 683.1331404572.

The spelling of 318798349 in words is "three hundred eighteen million, seven hundred ninety-eight thousand, three hundred forty-nine".