869441 has 4 divisors (see below), whose sum is σ = 879300. Its totient is φ = 859584.

The previous prime is 869437. The next prime is 869443. The reversal of 869441 is 144968.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 229441 + 640000 = 479^2 + 800^2 .

It is a cyclic number.

It is not a de Polignac number, because 869441 - 2² = 869437 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 869398 and 869407.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 869441.

It is not an unprimeable number, because it can be changed into a prime (869443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4796 + ... + 4973.

It is an arithmetic number, because the mean of its divisors is an integer number (219825).

2⁸⁶⁹⁴⁴¹ is an apocalyptic number.

It is an amenable number.

869441 is a deficient number, since it is larger than the sum of its proper divisors (9859).

869441 is an equidigital number, since it uses as much as digits as its factorization.

869441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9858.

The product of its digits is 6912, while the sum is 32.

The square root of 869441 is about 932.4382017056. The cubic root of 869441 is about 95.4435765861.

The spelling of 869441 in words is "eight hundred sixty-nine thousand, four hundred forty-one".