818359 has 2 divisors, whose sum is σ = 818360. Its totient is φ = 818358.

The previous prime is 818353. The next prime is 818371. The reversal of 818359 is 953818.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 818359 - 2⁵ = 818327 is a prime.

It is a super-2 number, since 2×818359² = 1339422905762, which contains 22 as substring.

818359 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (818353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409179 + 409180.

It is an arithmetic number, because the mean of its divisors is an integer number (409180).

2⁸¹⁸³⁵⁹ is an apocalyptic number.

818359 is a deficient number, since it is larger than the sum of its proper divisors (1).

818359 is an equidigital number, since it uses as much as digits as its factorization.

818359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 34.

The square root of 818359 is about 904.6319693665. The cubic root of 818359 is about 93.5365371422.

The spelling of 818359 in words is "eight hundred eighteen thousand, three hundred fifty-nine".