804353421 has 4 divisors (see below), whose sum is σ = 1072471232. Its totient is φ = 536235612.

The previous prime is 804353411. The next prime is 804353437. The reversal of 804353421 is 124353408.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 804353421 - 2¹⁵ = 804320653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804353411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134058901 + ... + 134058906.

It is an arithmetic number, because the mean of its divisors is an integer number (268117808).

Almost surely, 2^804353421 is an apocalyptic number.

It is an amenable number.

804353421 is a deficient number, since it is larger than the sum of its proper divisors (268117811).

804353421 is a wasteful number, since it uses less digits than its factorization.

804353421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268117810.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 804353421 is about 28361.1251716148. The cubic root of 804353421 is about 929.9986206477.

The spelling of 804353421 in words is "eight hundred four million, three hundred fifty-three thousand, four hundred twenty-one".