160689 has 8 divisors (see below), whose sum is σ = 221760. Its totient is φ = 103376.

The previous prime is 160687. The next prime is 160697. The reversal of 160689 is 986061.

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 160689 - 2¹ = 160687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (160681) 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, 837 + ... + 1010.

It is an arithmetic number, because the mean of its divisors is an integer number (27720).

2¹⁶⁰⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

160689 is a deficient number, since it is larger than the sum of its proper divisors (61071).

160689 is a wasteful number, since it uses less digits than its factorization.

160689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 160689 is about 400.8603248015. The cubic root of 160689 is about 54.3661671476.

The spelling of 160689 in words is "one hundred sixty thousand, six hundred eighty-nine".