538335673 has 2 divisors, whose sum is σ = 538335674. Its totient is φ = 538335672.

The previous prime is 538335643. The next prime is 538335731. The reversal of 538335673 is 376533835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 405901609 + 132434064 = 20147^2 + 11508^2 .

It is a cyclic number.

It is not a de Polignac number, because 538335673 - 2²⁵ = 504781241 is a prime.

It is not a weakly prime, because it can be changed into another prime (538335643) 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, 269167836 + 269167837.

It is an arithmetic number, because the mean of its divisors is an integer number (269167837).

Almost surely, 2^538335673 is an apocalyptic number.

It is an amenable number.

538335673 is a deficient number, since it is larger than the sum of its proper divisors (1).

538335673 is an equidigital number, since it uses as much as digits as its factorization.

538335673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680400, while the sum is 43.

The square root of 538335673 is about 23202.0618264843. The cubic root of 538335673 is about 813.4878168702.

The spelling of 538335673 in words is "five hundred thirty-eight million, three hundred thirty-five thousand, six hundred seventy-three".