17968243 has 8 divisors (see below), whose sum is σ = 19083600. Its totient is φ = 16869888.

The previous prime is 17968231. The next prime is 17968253. The reversal of 17968243 is 34286971.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17968243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17968196 and 17968205.

It is not an unprimeable number, because it can be changed into a prime (17968213) 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 7 ways as a sum of consecutive naturals, for example, 2038 + ... + 6331.

It is an arithmetic number, because the mean of its divisors is an integer number (2385450).

It is a vampire number, since it can be written as 2147 ⋅ 8369 (with its own digits).

Almost surely, 2^17968243 is an apocalyptic number.

17968243 is a deficient number, since it is larger than the sum of its proper divisors (1115357).

17968243 is a wasteful number, since it uses less digits than its factorization.

17968243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8501.

The product of its digits is 72576, while the sum is 40.

The square root of 17968243 is about 4238.8964365740. The cubic root of 17968243 is about 261.9199248327.

The spelling of 17968243 in words is "seventeen million, nine hundred sixty-eight thousand, two hundred forty-three".