804098 has 4 divisors (see below), whose sum is σ = 1206150. Its totient is φ = 402048.

The previous prime is 804091. The next prime is 804107. The reversal of 804098 is 890408.

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., 769129 + 34969 = 877^2 + 187^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 804098.

It is not an unprimeable number, because it can be changed into a prime (804091) by changing a digit.

804098 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201023 + ... + 201026.

2⁸⁰⁴⁰⁹⁸ is an apocalyptic number.

804098 is a deficient number, since it is larger than the sum of its proper divisors (402052).

804098 is a wasteful number, since it uses less digits than its factorization.

804098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402051.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 804098 is about 896.7151164110. The cubic root of 804098 is about 92.9900170423.

The spelling of 804098 in words is "eight hundred four thousand, ninety-eight".