320112689 has 16 divisors (see below), whose sum is σ = 365643264. Its totient is φ = 277992000.

The previous prime is 320112673. The next prime is 320112697. The reversal of 320112689 is 986211023.

It is not a de Polignac number, because 320112689 - 2⁴ = 320112673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (320112889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9464 + ... + 27014.

It is an arithmetic number, because the mean of its divisors is an integer number (22852704).

Almost surely, 2^320112689 is an apocalyptic number.

It is an amenable number.

320112689 is a deficient number, since it is larger than the sum of its proper divisors (45530575).

320112689 is a wasteful number, since it uses less digits than its factorization.

320112689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17648.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 320112689 is about 17891.6932960522. The cubic root of 320112689 is about 684.0706590309.

The spelling of 320112689 in words is "three hundred twenty million, one hundred twelve thousand, six hundred eighty-nine".