1716421319 has 4 divisors (see below), whose sum is σ = 1722486696. Its totient is φ = 1710355944.

The previous prime is 1716421313. The next prime is 1716421321. The reversal of 1716421319 is 9131246171.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9131246171 = 71 ⋅128609101.

It is a cyclic number.

It is not a de Polignac number, because 1716421319 - 2¹⁶ = 1716355783 is a prime.

It is a super-2 number, since 2×1716421319² = 5892204288635399522, which contains 22 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 (1716421313) 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, 3032264 + ... + 3032829.

It is an arithmetic number, because the mean of its divisors is an integer number (430621674).

Almost surely, 2^1716421319 is an apocalyptic number.

1716421319 is a deficient number, since it is larger than the sum of its proper divisors (6065377).

1716421319 is an equidigital number, since it uses as much as digits as its factorization.

1716421319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6065376.

The product of its digits is 9072, while the sum is 35.

The square root of 1716421319 is about 41429.7154105601. The cubic root of 1716421319 is about 1197.3137409324.

It can be divided in two parts, 17164 and 21319, that added together give a palindrome (38483).

The spelling of 1716421319 in words is "one billion, seven hundred sixteen million, four hundred twenty-one thousand, three hundred nineteen".