804323664 has 60 divisors (see below), whose sum is σ = 2259404992. Its totient is φ = 267105600.

The previous prime is 804323657. The next prime is 804323683. The reversal of 804323664 is 466323408.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28719 + ... + 49329.

Almost surely, 2^804323664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 804323664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1129702496).

804323664 is an abundant number, since it is smaller than the sum of its proper divisors (1455081328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

804323664 is a wasteful number, since it uses less digits than its factorization.

804323664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20896 (or 20887 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 804323664 is about 28360.6005578161. The cubic root of 804323664 is about 929.9871520944.

The spelling of 804323664 in words is "eight hundred four million, three hundred twenty-three thousand, six hundred sixty-four".