818473 has 2 divisors, whose sum is σ = 818474. Its totient is φ = 818472.

The previous prime is 818453. The next prime is 818509. The reversal of 818473 is 374818.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 788544 + 29929 = 888^2 + 173^2 .

It is a cyclic number.

It is not a de Polignac number, because 818473 - 2¹³ = 810281 is a prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (818413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409236 + 409237.

It is an arithmetic number, because the mean of its divisors is an integer number (409237).

2⁸¹⁸⁴⁷³ is an apocalyptic number.

It is an amenable number.

818473 is a deficient number, since it is larger than the sum of its proper divisors (1).

818473 is an equidigital number, since it uses as much as digits as its factorization.

818473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 31.

The square root of 818473 is about 904.6949762213. The cubic root of 818473 is about 93.5408802525.

It can be divided in two parts, 8 and 18473, that added together give a palindrome (18481).

The spelling of 818473 in words is "eight hundred eighteen thousand, four hundred seventy-three".