804768194 has 4 divisors (see below), whose sum is σ = 1207152294. Its totient is φ = 402384096.

The previous prime is 804768127. The next prime is 804768203. The reversal of 804768194 is 491867408.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 646939225 + 157828969 = 25435^2 + 12563^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 201192047 + ... + 201192050.

Almost surely, 2^804768194 is an apocalyptic number.

804768194 is a deficient number, since it is larger than the sum of its proper divisors (402384100).

804768194 is a wasteful number, since it uses less digits than its factorization.

804768194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402384099.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 804768194 is about 28368.4365801149. The cubic root of 804768194 is about 930.1584475860.

The spelling of 804768194 in words is "eight hundred four million, seven hundred sixty-eight thousand, one hundred ninety-four".