804345 has 8 divisors (see below), whose sum is σ = 1286976. Its totient is φ = 428976.

The previous prime is 804341. The next prime is 804367. The reversal of 804345 is 543408.

It is a happy number.

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

It is not a de Polignac number, because 804345 - 2² = 804341 is a prime.

804345 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (804341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26797 + ... + 26826.

It is an arithmetic number, because the mean of its divisors is an integer number (160872).

2⁸⁰⁴³⁴⁵ is an apocalyptic number.

It is an amenable number.

804345 is a deficient number, since it is larger than the sum of its proper divisors (482631).

804345 is a wasteful number, since it uses less digits than its factorization.

804345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53631.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 804345 is about 896.8528307365. The cubic root of 804345 is about 92.9995375165. Note that the first 3 decimals are identical.

The spelling of 804345 in words is "eight hundred four thousand, three hundred forty-five".