808399 has 2 divisors, whose sum is σ = 808400. Its totient is φ = 808398.

The previous prime is 808391. The next prime is 808417. The reversal of 808399 is 993808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 808399 - 2³ = 808391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (808391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404199 + 404200.

It is an arithmetic number, because the mean of its divisors is an integer number (404200).

2⁸⁰⁸³⁹⁹ is an apocalyptic number.

808399 is a deficient number, since it is larger than the sum of its proper divisors (1).

808399 is an equidigital number, since it uses as much as digits as its factorization.

808399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 808399 is about 899.1101156143. The cubic root of 808399 is about 93.1555188774.

The spelling of 808399 in words is "eight hundred eight thousand, three hundred ninety-nine".