804364849 has 12 divisors (see below), whose sum is σ = 825435468. Its totient is φ = 783767040.

The previous prime is 804364819. The next prime is 804364853. The reversal of 804364849 is 948463408.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 350887824 + 453477025 = 18732^2 + 21295^2 .

It is not a de Polignac number, because 804364849 - 2¹⁷ = 804233777 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 804364799 and 804364808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804364819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 419517 + ... + 421429.

It is an arithmetic number, because the mean of its divisors is an integer number (68786289).

Almost surely, 2^804364849 is an apocalyptic number.

It is an amenable number.

804364849 is a deficient number, since it is larger than the sum of its proper divisors (21070619).

804364849 is a wasteful number, since it uses less digits than its factorization.

804364849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2148 (or 2087 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The square root of 804364849 is about 28361.3266438649. The cubic root of 804364849 is about 930.0030250027.

The spelling of 804364849 in words is "eight hundred four million, three hundred sixty-four thousand, eight hundred forty-nine".