16442717 has 4 divisors (see below), whose sum is σ = 16463520. Its totient is φ = 16421916.

The previous prime is 16442711. The next prime is 16442719. The reversal of 16442717 is 71724461.

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 a cyclic number.

It is not a de Polignac number, because 16442717 - 2¹⁰ = 16441693 is a prime.

It is a super-3 number, since 3×16442717³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442711) 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, 9167 + ... + 10812.

It is an arithmetic number, because the mean of its divisors is an integer number (4115880).

Almost surely, 2^16442717 is an apocalyptic number.

It is an amenable number.

16442717 is a deficient number, since it is larger than the sum of its proper divisors (20803).

16442717 is an equidigital number, since it uses as much as digits as its factorization.

16442717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20802.

The product of its digits is 9408, while the sum is 32.

The square root of 16442717 is about 4054.9620220170. The cubic root of 16442717 is about 254.2872161766.

The spelling of 16442717 in words is "sixteen million, four hundred forty-two thousand, seven hundred seventeen".