808481 has 2 divisors, whose sum is σ = 808482. Its totient is φ = 808480.

The previous prime is 808459. The next prime is 808517. The reversal of 808481 is 184808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 429025 + 379456 = 655^2 + 616^2 .

It is a cyclic number.

It is not a de Polignac number, because 808481 - 2⁶ = 808417 is a prime.

It is a super-2 number, since 2×808481² = 1307283054722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

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 808481.

It is not a weakly prime, because it can be changed into another prime (808421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404240 + 404241.

It is an arithmetic number, because the mean of its divisors is an integer number (404241).

2⁸⁰⁸⁴⁸¹ is an apocalyptic number.

It is an amenable number.

808481 is a deficient number, since it is larger than the sum of its proper divisors (1).

808481 is an equidigital number, since it uses as much as digits as its factorization.

808481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 808481 is about 899.1557151017. The cubic root of 808481 is about 93.1586685160.

The spelling of 808481 in words is "eight hundred eight thousand, four hundred eighty-one".