804163849 has 4 divisors (see below), whose sum is σ = 804222736. Its totient is φ = 804104964.

The previous prime is 804163837. The next prime is 804163889. The reversal of 804163849 is 948361408.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 804163849 - 2⁷ = 804163721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (804163819) 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, 2842 + ... + 40204.

It is an arithmetic number, because the mean of its divisors is an integer number (201055684).

Almost surely, 2^804163849 is an apocalyptic number.

It is an amenable number.

804163849 is a deficient number, since it is larger than the sum of its proper divisors (58887).

804163849 is a wasteful number, since it uses less digits than its factorization.

804163849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58886.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 804163849 is about 28357.7828646740. The cubic root of 804163849 is about 929.9255534503.

The spelling of 804163849 in words is "eight hundred four million, one hundred sixty-three thousand, eight hundred forty-nine".