538686853 has 2 divisors, whose sum is σ = 538686854. Its totient is φ = 538686852.

The previous prime is 538686851. The next prime is 538686923. The reversal of 538686853 is 358686835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 509720929 + 28965924 = 22577^2 + 5382^2 .

It is a cyclic number.

It is not a de Polignac number, because 538686853 - 2¹ = 538686851 is a prime.

Together with 538686851, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 538686853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538686851) 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, 269343426 + 269343427.

It is an arithmetic number, because the mean of its divisors is an integer number (269343427).

Almost surely, 2^538686853 is an apocalyptic number.

It is an amenable number.

538686853 is a deficient number, since it is larger than the sum of its proper divisors (1).

538686853 is an equidigital number, since it uses as much as digits as its factorization.

538686853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4147200, while the sum is 52.

The square root of 538686853 is about 23209.6284545875. The cubic root of 538686853 is about 813.6646696949.

The spelling of 538686853 in words is "five hundred thirty-eight million, six hundred eighty-six thousand, eight hundred fifty-three".