83489289 has 16 divisors (see below), whose sum is σ = 124017600. Its totient is φ = 49605696.

The previous prime is 83489269. The next prime is 83489299. The reversal of 83489289 is 98298438.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-83489289 is a prime.

It is a super-3 number, since 3×83489289³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (83489239) 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, 35779 + ... + 38040.

It is an arithmetic number, because the mean of its divisors is an integer number (7751100).

Almost surely, 2^83489289 is an apocalyptic number.

It is an amenable number.

83489289 is a deficient number, since it is larger than the sum of its proper divisors (40528311).

83489289 is a wasteful number, since it uses less digits than its factorization.

83489289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73864.

The product of its digits is 995328, while the sum is 51.

The square root of 83489289 is about 9137.2473426082. The cubic root of 83489289 is about 437.0625422132.

The spelling of 83489289 in words is "eighty-three million, four hundred eighty-nine thousand, two hundred eighty-nine".