1716649497 has 8 divisors (see below), whose sum is σ = 2543184480. Its totient is φ = 1144432980.

The previous prime is 1716649481. The next prime is 1716649547. The reversal of 1716649497 is 7949466171.

1716649497 is a `hidden beast` number, since 1 + 7 + 1 + 66 + 494 + 97 = 666.

It is not a de Polignac number, because 1716649497 - 2⁴ = 1716649481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1716649097) 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, 31789779 + ... + 31789832.

It is an arithmetic number, because the mean of its divisors is an integer number (317898060).

Almost surely, 2^1716649497 is an apocalyptic number.

It is an amenable number.

1716649497 is a deficient number, since it is larger than the sum of its proper divisors (826534983).

1716649497 is an equidigital number, since it uses as much as digits as its factorization.

1716649497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63579620 (or 63579614 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 1716649497 is about 41432.4691154172. The cubic root of 1716649497 is about 1197.3667948352.

The spelling of 1716649497 in words is "one billion, seven hundred sixteen million, six hundred forty-nine thousand, four hundred ninety-seven".