804575421 has 48 divisors (see below), whose sum is σ = 1289084160. Its totient is φ = 480504960.

The previous prime is 804575417. The next prime is 804575437. The reversal of 804575421 is 124575408.

804575421 is a `hidden beast` number, since 80 + 4 + 575 + 4 + 2 + 1 = 666.

It is not a de Polignac number, because 804575421 - 2² = 804575417 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804575411) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 563110 + ... + 564536.

It is an arithmetic number, because the mean of its divisors is an integer number (26855920).

Almost surely, 2^804575421 is an apocalyptic number.

It is an amenable number.

804575421 is a deficient number, since it is larger than the sum of its proper divisors (484508739).

804575421 is a wasteful number, since it uses less digits than its factorization.

804575421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586 (or 1583 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 804575421 is about 28365.0387096510. The cubic root of 804575421 is about 930.0841720555.

The spelling of 804575421 in words is "eight hundred four million, five hundred seventy-five thousand, four hundred twenty-one".