538817 has 2 divisors, whose sum is σ = 538818. Its totient is φ = 538816.

The previous prime is 538801. The next prime is 538823. The reversal of 538817 is 718835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 524176 + 14641 = 724^2 + 121^2 .

It is a cyclic number.

It is not a de Polignac number, because 538817 - 2⁴ = 538801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (538877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269408 + 269409.

It is an arithmetic number, because the mean of its divisors is an integer number (269409).

2⁵³⁸⁸¹⁷ is an apocalyptic number.

It is an amenable number.

538817 is a deficient number, since it is larger than the sum of its proper divisors (1).

538817 is an equidigital number, since it uses as much as digits as its factorization.

538817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 32.

The square root of 538817 is about 734.0415519574. The cubic root of 538817 is about 81.3730191676.

The spelling of 538817 in words is "five hundred thirty-eight thousand, eight hundred seventeen".