1716971397 has 8 divisors (see below), whose sum is σ = 2291502720. Its totient is φ = 1143543840.

The previous prime is 1716971387. The next prime is 1716971407. The reversal of 1716971397 is 7931796171.

It is an interprime number because it is at equal distance from previous prime (1716971387) and next prime (1716971407).

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

It is not a de Polignac number, because 1716971397 - 2⁸ = 1716971141 is a prime.

It is a super-2 number, since 2×1716971397² = 5895981556232263218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1716971387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272304 + ... + 278537.

It is an arithmetic number, because the mean of its divisors is an integer number (286437840).

Almost surely, 2^1716971397 is an apocalyptic number.

It is an amenable number.

1716971397 is a deficient number, since it is larger than the sum of its proper divisors (574531323).

1716971397 is a wasteful number, since it uses less digits than its factorization.

1716971397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551883.

The product of its digits is 500094, while the sum is 51.

The square root of 1716971397 is about 41436.3535678515. The cubic root of 1716971397 is about 1197.4416321433.

The spelling of 1716971397 in words is "one billion, seven hundred sixteen million, nine hundred seventy-one thousand, three hundred ninety-seven".