805449 has 8 divisors (see below), whose sum is σ = 1078272. Its totient is φ = 534800.

The previous prime is 805421. The next prime is 805451. The reversal of 805449 is 944508.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-805449 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (805499) 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, 799 + ... + 1499.

It is an arithmetic number, because the mean of its divisors is an integer number (134784).

2⁸⁰⁵⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

805449 is a deficient number, since it is larger than the sum of its proper divisors (272823).

805449 is a wasteful number, since it uses less digits than its factorization.

805449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 805449 is about 897.4681052829. The cubic root of 805449 is about 93.0420667593.

The spelling of 805449 in words is "eight hundred five thousand, four hundred forty-nine".