2317998 has 8 divisors (see below), whose sum is σ = 4636008. Its totient is φ = 772664.

The previous prime is 2317979. The next prime is 2318003. The reversal of 2317998 is 8997132.

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

2317998 is an admirable number.

It is a super-2 number, since 2×2317998² = 10746229456008, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 193161 + ... + 193172.

It is an arithmetic number, because the mean of its divisors is an integer number (579501).

2^2317998 is an apocalyptic number.

2317998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2317998 is a wasteful number, since it uses less digits than its factorization.

2317998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386338.

The product of its digits is 27216, while the sum is 39.

The square root of 2317998 is about 1522.4972906380. The cubic root of 2317998 is about 132.3440291225.

The spelling of 2317998 in words is "two million, three hundred seventeen thousand, nine hundred ninety-eight".