1689289609 has 8 divisors (see below), whose sum is σ = 2044182528. Its totient is φ = 1362788160.

The previous prime is 1689289573. The next prime is 1689289631. The reversal of 1689289609 is 9069829861.

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

It is a cyclic number.

It is not a de Polignac number, because 1689289609 - 2²⁵ = 1655735177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1689289009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7097737 + ... + 7097974.

It is an arithmetic number, because the mean of its divisors is an integer number (255522816).

Almost surely, 2^1689289609 is an apocalyptic number.

It is an amenable number.

1689289609 is a deficient number, since it is larger than the sum of its proper divisors (354892919).

1689289609 is a wasteful number, since it uses less digits than its factorization.

1689289609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14195735.

The product of its (nonzero) digits is 3359232, while the sum is 58.

The square root of 1689289609 is about 41100.9684679084. The cubic root of 1689289609 is about 1190.9715035776.

The spelling of 1689289609 in words is "one billion, six hundred eighty-nine million, two hundred eighty-nine thousand, six hundred nine".