869449 has 8 divisors (see below), whose sum is σ = 1028160. Its totient is φ = 719376.

The previous prime is 869443. The next prime is 869461. The reversal of 869449 is 944968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 869449 - 2⁷ = 869321 is a prime.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1939 + ... + 2344.

It is an arithmetic number, because the mean of its divisors is an integer number (128520).

2⁸⁶⁹⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

869449 is a deficient number, since it is larger than the sum of its proper divisors (158711).

869449 is a wasteful number, since it uses less digits than its factorization.

869449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4319.

The product of its digits is 62208, while the sum is 40.

The square root of 869449 is about 932.4424915243. The cubic root of 869449 is about 95.4438693206.

The spelling of 869449 in words is "eight hundred sixty-nine thousand, four hundred forty-nine".