405799 has 2 divisors, whose sum is σ = 405800. Its totient is φ = 405798.

The previous prime is 405781. The next prime is 405817. The reversal of 405799 is 997504.

It is a balanced prime because it is at equal distance from previous prime (405781) and next prime (405817).

It is a cyclic number.

It is not a de Polignac number, because 405799 - 2⁵ = 405767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202899 + 202900.

It is an arithmetic number, because the mean of its divisors is an integer number (202900).

2⁴⁰⁵⁷⁹⁹ is an apocalyptic number.

405799 is a deficient number, since it is larger than the sum of its proper divisors (1).

405799 is an equidigital number, since it uses as much as digits as its factorization.

405799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 405799 is about 637.0235474455. The cubic root of 405799 is about 74.0349846753.

The spelling of 405799 in words is "four hundred five thousand, seven hundred ninety-nine".