318797 has 4 divisors (see below), whose sum is σ = 329820. Its totient is φ = 307776.

The previous prime is 318793. The next prime is 318809. The reversal of 318797 is 797813.

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 106276 + 212521 = 326^2 + 461^2 .

It is a cyclic number.

It is not a de Polignac number, because 318797 - 2² = 318793 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 (318793) 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 in 3 ways as a sum of consecutive naturals, for example, 5468 + ... + 5525.

It is an arithmetic number, because the mean of its divisors is an integer number (82455).

2³¹⁸⁷⁹⁷ is an apocalyptic number.

It is an amenable number.

318797 is a deficient number, since it is larger than the sum of its proper divisors (11023).

318797 is a wasteful number, since it uses less digits than its factorization.

318797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11022.

The product of its digits is 10584, while the sum is 35.

The square root of 318797 is about 564.6211118972. The cubic root of 318797 is about 68.3132176893.

The spelling of 318797 in words is "three hundred eighteen thousand, seven hundred ninety-seven".