804655 has 8 divisors (see below), whose sum is σ = 1007712. Its totient is φ = 615648.

The previous prime is 804653. The next prime is 804689. The reversal of 804655 is 556408.

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 804655 - 2¹ = 804653 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804653) 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, 3384 + ... + 3613.

It is an arithmetic number, because the mean of its divisors is an integer number (125964).

2⁸⁰⁴⁶⁵⁵ is an apocalyptic number.

804655 is a deficient number, since it is larger than the sum of its proper divisors (203057).

804655 is a wasteful number, since it uses less digits than its factorization.

804655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7025.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 804655 is about 897.0256406592. The cubic root of 804655 is about 93.0114835321.

The spelling of 804655 in words is "eight hundred four thousand, six hundred fifty-five".