804451 has 4 divisors (see below), whose sum is σ = 810000. Its totient is φ = 798904.

The previous prime is 804449. The next prime is 804473. The reversal of 804451 is 154408.

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

It is a cyclic number.

It is not a de Polignac number, because 804451 - 2¹ = 804449 is a prime.

It is a super-2 number, since 2×804451² = 1294282822802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (804751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2551 + ... + 2848.

It is an arithmetic number, because the mean of its divisors is an integer number (202500).

2⁸⁰⁴⁴⁵¹ is an apocalyptic number.

804451 is a deficient number, since it is larger than the sum of its proper divisors (5549).

804451 is a wasteful number, since it uses less digits than its factorization.

804451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5548.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 804451 is about 896.9119243270. The cubic root of 804451 is about 93.0036226284.

Adding to 804451 its reverse (154408), we get a palindrome (958859).

The spelling of 804451 in words is "eight hundred four thousand, four hundred fifty-one".