804381 has 8 divisors (see below), whose sum is σ = 1092960. Its totient is φ = 526032.

The previous prime is 804371. The next prime is 804383. The reversal of 804381 is 183408.

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

It is not a de Polignac number, because 804381 - 2⁶ = 804317 is a prime.

It is a super-2 number, since 2×804381² = 1294057586322, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 804381.

It is not an unprimeable number, because it can be changed into a prime (804383) 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, 2371 + ... + 2688.

It is an arithmetic number, because the mean of its divisors is an integer number (136620).

2⁸⁰⁴³⁸¹ is an apocalyptic number.

It is an amenable number.

804381 is a deficient number, since it is larger than the sum of its proper divisors (288579).

804381 is a wasteful number, since it uses less digits than its factorization.

804381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5115.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 804381 is about 896.8729006944. The cubic root of 804381 is about 93.0009249532. Note that the first 3 decimals are identical.

Subtracting from 804381 its sum of digits (24), we obtain a cube (804357 = 93³).

Adding to 804381 its reverse (183408), we get a palindrome (987789).

The spelling of 804381 in words is "eight hundred four thousand, three hundred eighty-one".