2317997 has 6 divisors (see below), whose sum is σ = 2548014. Its totient is φ = 2107160.

The previous prime is 2317979. The next prime is 2318003. The reversal of 2317997 is 7997132.

It can be written as a sum of positive squares in only one way, i.e., 1359556 + 958441 = 1166^2 + 979^2 .

It is not a de Polignac number, because 2317997 - 2⁸ = 2317741 is a prime.

It is a super-2 number, since 2×2317997² = 10746220184018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2317997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2317907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9458 + ... + 9699.

It is an arithmetic number, because the mean of its divisors is an integer number (424669).

2^2317997 is an apocalyptic number.

It is an amenable number.

2317997 is a deficient number, since it is larger than the sum of its proper divisors (230017).

2317997 is a wasteful number, since it uses less digits than its factorization.

2317997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19179 (or 19168 counting only the distinct ones).

The product of its digits is 23814, while the sum is 38.

The square root of 2317997 is about 1522.4969622301. The cubic root of 2317997 is about 132.3440100911.

It can be divided in two parts, 231 and 7997, that added together give a palindrome (8228).

The spelling of 2317997 in words is "two million, three hundred seventeen thousand, nine hundred ninety-seven".