1716049689 has 4 divisors (see below), whose sum is σ = 2288066256. Its totient is φ = 1144033124.

The previous prime is 1716049681. The next prime is 1716049693. The reversal of 1716049689 is 9869406171.

It is a happy number.

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 1716049689 - 2³ = 1716049681 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1716049681) 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, 286008279 + ... + 286008284.

It is an arithmetic number, because the mean of its divisors is an integer number (572016564).

Almost surely, 2^1716049689 is an apocalyptic number.

It is an amenable number.

1716049689 is a deficient number, since it is larger than the sum of its proper divisors (572016567).

1716049689 is an equidigital number, since it uses as much as digits as its factorization.

1716049689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572016566.

The product of its (nonzero) digits is 653184, while the sum is 51.

The square root of 1716049689 is about 41425.2301019560. The cubic root of 1716049689 is about 1197.2273227906.

The spelling of 1716049689 in words is "one billion, seven hundred sixteen million, forty-nine thousand, six hundred eighty-nine".