805384 has 8 divisors (see below), whose sum is σ = 1510110. Its totient is φ = 402688.

The previous prime is 805381. The next prime is 805397. The reversal of 805384 is 483508.

It can be written as a sum of positive squares in only one way, i.e., 532900 + 272484 = 730^2 + 522^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (805381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50329 + ... + 50344.

2⁸⁰⁵³⁸⁴ is an apocalyptic number.

It is an amenable number.

805384 is a deficient number, since it is larger than the sum of its proper divisors (704726).

805384 is a wasteful number, since it uses less digits than its factorization.

805384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100679 (or 100675 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 805384 is about 897.4318915662. The cubic root of 805384 is about 93.0395638502.

The spelling of 805384 in words is "eight hundred five thousand, three hundred eighty-four".