308804 has 6 divisors (see below), whose sum is σ = 540414. Its totient is φ = 154400.

The previous prime is 308801. The next prime is 308809. The reversal of 308804 is 408803.

308804 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 184900 + 123904 = 430^2 + 352^2 .

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 308804.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 308804.

It is not an unprimeable number, because it can be changed into a prime (308801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38597 + ... + 38604.

It is an arithmetic number, because the mean of its divisors is an integer number (90069).

2³⁰⁸⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

308804 is a deficient number, since it is larger than the sum of its proper divisors (231610).

308804 is a wasteful number, since it uses less digits than its factorization.

308804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77205 (or 77203 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 308804 is about 555.7013586451. The cubic root of 308804 is about 67.5918457071.

Subtracting 308804 from its reverse (408803), we obtain a palindrome (99999).

The spelling of 308804 in words is "three hundred eight thousand, eight hundred four".