817473533 has 2 divisors, whose sum is σ = 817473534. Its totient is φ = 817473532.

The previous prime is 817473467. The next prime is 817473551. The reversal of 817473533 is 335374718.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 544662244 + 272811289 = 23338^2 + 16517^2 .

It is a cyclic number.

It is not a de Polignac number, because 817473533 - 2¹⁸ = 817211389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (817473563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408736766 + 408736767.

It is an arithmetic number, because the mean of its divisors is an integer number (408736767).

Almost surely, 2^817473533 is an apocalyptic number.

It is an amenable number.

817473533 is a deficient number, since it is larger than the sum of its proper divisors (1).

817473533 is an equidigital number, since it uses as much as digits as its factorization.

817473533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 41.

The square root of 817473533 is about 28591.4940672921. The cubic root of 817473533 is about 935.0278935886.

The spelling of 817473533 in words is "eight hundred seventeen million, four hundred seventy-three thousand, five hundred thirty-three".