869736 has 64 divisors (see below), whose sum is σ = 2580480. Its totient is φ = 239040.

The previous prime is 869717. The next prime is 869747. The reversal of 869736 is 637968.

It is a junction number, because it is equal to n+sod(n) for n = 869694 and 869703.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 869736.

It is an unprimeable number.

869736 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5125 + ... + 5291.

It is an arithmetic number, because the mean of its divisors is an integer number (40320).

2⁸⁶⁹⁷³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1290240).

869736 is an abundant number, since it is smaller than the sum of its proper divisors (1710744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

869736 is a wasteful number, since it uses less digits than its factorization.

869736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 210 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 869736 is about 932.5963757167. The cubic root of 869736 is about 95.4543699852.

The spelling of 869736 in words is "eight hundred sixty-nine thousand, seven hundred thirty-six".