804491 has 8 divisors (see below), whose sum is σ = 875520. Its totient is φ = 736128.

The previous prime is 804473. The next prime is 804493. The reversal of 804491 is 194408.

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

It is a cyclic number.

It is not a de Polignac number, because 804491 - 2¹⁴ = 788107 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 804491.

It is not an unprimeable number, because it can be changed into a prime (804493) 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, 11 + ... + 1268.

It is an arithmetic number, because the mean of its divisors is an integer number (109440).

2⁸⁰⁴⁴⁹¹ is an apocalyptic number.

804491 is a deficient number, since it is larger than the sum of its proper divisors (71029).

804491 is a wasteful number, since it uses less digits than its factorization.

804491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 804491 is about 896.9342227834. The cubic root of 804491 is about 93.0051640868.

Adding to 804491 its reverse (194408), we get a palindrome (998899).

The spelling of 804491 in words is "eight hundred four thousand, four hundred ninety-one".