19941717 has 4 divisors (see below), whose sum is σ = 26588960. Its totient is φ = 13294476.

The previous prime is 19941683. The next prime is 19941721. The reversal of 19941717 is 71714991.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 19941717 - 2⁶ = 19941653 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 (19941767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3323617 + ... + 3323622.

It is an arithmetic number, because the mean of its divisors is an integer number (6647240).

Almost surely, 2^19941717 is an apocalyptic number.

It is an amenable number.

19941717 is a deficient number, since it is larger than the sum of its proper divisors (6647243).

19941717 is an equidigital number, since it uses as much as digits as its factorization.

19941717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6647242.

The product of its digits is 15876, while the sum is 39.

The square root of 19941717 is about 4465.6149632497. The cubic root of 19941717 is about 271.1778311122.

The spelling of 19941717 in words is "nineteen million, nine hundred forty-one thousand, seven hundred seventeen".