869229 has 6 divisors (see below), whose sum is σ = 1255566. Its totient is φ = 579480.

The previous prime is 869203. The next prime is 869233. The reversal of 869229 is 922968.

It can be written as a sum of positive squares in only one way, i.e., 476100 + 393129 = 690^2 + 627^2 .

It is not a de Polignac number, because 869229 - 2¹³ = 861037 is a prime.

It is a Curzon number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 869193 and 869202.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 869229.

It is not an unprimeable number, because it can be changed into a prime (869249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48282 + ... + 48299.

It is an arithmetic number, because the mean of its divisors is an integer number (209261).

2⁸⁶⁹²²⁹ is an apocalyptic number.

It is an amenable number.

869229 is a deficient number, since it is larger than the sum of its proper divisors (386337).

869229 is a wasteful number, since it uses less digits than its factorization.

869229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96587 (or 96584 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 869229 is about 932.3245143189. The cubic root of 869229 is about 95.4358184660.

The spelling of 869229 in words is "eight hundred sixty-nine thousand, two hundred twenty-nine".