1689522085 has 8 divisors (see below), whose sum is σ = 2134133280. Its totient is φ = 1280479824.

The previous prime is 1689522077. The next prime is 1689522143. The reversal of 1689522085 is 5802259861.

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 1689522085 - 2³ = 1689522077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8892127 + ... + 8892316.

It is an arithmetic number, because the mean of its divisors is an integer number (266766660).

Almost surely, 2^1689522085 is an apocalyptic number.

It is an amenable number.

1689522085 is a deficient number, since it is larger than the sum of its proper divisors (444611195).

1689522085 is a wasteful number, since it uses less digits than its factorization.

1689522085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17784467.

The product of its (nonzero) digits is 345600, while the sum is 46.

The square root of 1689522085 is about 41103.7964791575. The cubic root of 1689522085 is about 1191.0261339559.

The spelling of 1689522085 in words is "one billion, six hundred eighty-nine million, five hundred twenty-two thousand, eighty-five".