19996317 has 48 divisors (see below), whose sum is σ = 33291648. Its totient is φ = 11456640.

The previous prime is 19996313. The next prime is 19996321. The reversal of 19996317 is 71369991.

19996317 is a `hidden beast` number, since 1 + 9 + 9 + 9 + 631 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (19996313) and next prime (19996321).

It is not a de Polignac number, because 19996317 - 2² = 19996313 is a prime.

19996317 is a Rhonda number in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19996313) 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 47 ways as a sum of consecutive naturals, for example, 194088 + ... + 194190.

It is an arithmetic number, because the mean of its divisors is an integer number (693576).

Almost surely, 2^19996317 is an apocalyptic number.

It is an amenable number.

19996317 is a deficient number, since it is larger than the sum of its proper divisors (13295331).

19996317 is a wasteful number, since it uses less digits than its factorization.

19996317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 207 counting only the distinct ones).

The product of its digits is 91854, while the sum is 45.

The square root of 19996317 is about 4471.7241641228. The cubic root of 19996317 is about 271.4250986365.

The spelling of 19996317 in words is "nineteen million, nine hundred ninety-six thousand, three hundred seventeen".