82669 has 6 divisors (see below), whose sum is σ = 87630. Its totient is φ = 77976.

The previous prime is 82657. The next prime is 82699. The reversal of 82669 is 96628.

It can be written as a sum of positive squares in only one way, i.e., 81225 + 1444 = 285^2 + 38^2 .

It is not a de Polignac number, because 82669 - 2¹¹ = 80621 is a prime.

It is a super-2 number, since 2×82669² = 13668327122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 247 + ... + 475.

It is an arithmetic number, because the mean of its divisors is an integer number (14605).

2⁸²⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

82669 is a deficient number, since it is larger than the sum of its proper divisors (4961).

82669 is a wasteful number, since it uses less digits than its factorization.

82669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 248 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 82669 is about 287.5221730580. The cubic root of 82669 is about 43.5626437031.

The spelling of 82669 in words is "eighty-two thousand, six hundred sixty-nine".