804453121 has 4 divisors (see below), whose sum is σ = 816459952. Its totient is φ = 792446292.

The previous prime is 804453113. The next prime is 804453161. The reversal of 804453121 is 121354408.

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 a cyclic number.

It is not a de Polignac number, because 804453121 - 2³ = 804453113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 804453121.

It is not an unprimeable number, because it can be changed into a prime (804453101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6003315 + ... + 6003448.

It is an arithmetic number, because the mean of its divisors is an integer number (204114988).

Almost surely, 2^804453121 is an apocalyptic number.

It is an amenable number.

804453121 is a deficient number, since it is larger than the sum of its proper divisors (12006831).

804453121 is a wasteful number, since it uses less digits than its factorization.

804453121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12006830.

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

The square root of 804453121 is about 28362.8828048208. The cubic root of 804453121 is about 930.0370436549.

The spelling of 804453121 in words is "eight hundred four million, four hundred fifty-three thousand, one hundred twenty-one".