804106 has 4 divisors (see below), whose sum is σ = 1206162. Its totient is φ = 402052.

The previous prime is 804091. The next prime is 804107. The reversal of 804106 is 601408.

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., 549081 + 255025 = 741^2 + 505^2 .

It is not an unprimeable number, because it can be changed into a prime (804107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201025 + ... + 201028.

2⁸⁰⁴¹⁰⁶ is an apocalyptic number.

804106 is a deficient number, since it is larger than the sum of its proper divisors (402056).

804106 is a wasteful number, since it uses less digits than its factorization.

804106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402055.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 804106 is about 896.7195771254. The cubic root of 804106 is about 92.9903254283.

It can be divided in two parts, 80 and 4106, that added together give a triangular number (4186 = T₉₁).

The spelling of 804106 in words is "eight hundred four thousand, one hundred six".