83669 has 4 divisors (see below), whose sum is σ = 86400. Its totient is φ = 80940.

The previous prime is 83663. The next prime is 83689. The reversal of 83669 is 96638.

83669 = 166² + 167² + 168².

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83669 - 2⁴ = 83653 is a prime.

It is a super-2 number, since 2×83669² = 14001003122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1319 + ... + 1380.

It is an arithmetic number, because the mean of its divisors is an integer number (21600).

2⁸³⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

83669 is a deficient number, since it is larger than the sum of its proper divisors (2731).

83669 is a wasteful number, since it uses less digits than its factorization.

83669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730.

The product of its digits is 7776, while the sum is 32.

The square root of 83669 is about 289.2559420306. The cubic root of 83669 is about 43.7375910386.

The spelling of 83669 in words is "eighty-three thousand, six hundred sixty-nine".