818093 has 2 divisors, whose sum is σ = 818094. Its totient is φ = 818092.

The previous prime is 818021. The next prime is 818099. The reversal of 818093 is 390818.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 813604 + 4489 = 902^2 + 67^2 .

It is a cyclic number.

It is not a de Polignac number, because 818093 - 2⁸ = 817837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (818099) 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, 409046 + 409047.

It is an arithmetic number, because the mean of its divisors is an integer number (409047).

2⁸¹⁸⁰⁹³ is an apocalyptic number.

It is an amenable number.

818093 is a deficient number, since it is larger than the sum of its proper divisors (1).

818093 is an equidigital number, since it uses as much as digits as its factorization.

818093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 818093 is about 904.4849363035. The cubic root of 818093 is about 93.5264016495.

The spelling of 818093 in words is "eight hundred eighteen thousand, ninety-three".