538686923 has 2 divisors, whose sum is σ = 538686924. Its totient is φ = 538686922.

The previous prime is 538686853. The next prime is 538686937. The reversal of 538686923 is 329686835.

538686923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 538686923 - 2¹² = 538682827 is a prime.

It is a super-3 number, since 3×538686923³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (538686523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269343461 + 269343462.

It is an arithmetic number, because the mean of its divisors is an integer number (269343462).

Almost surely, 2^538686923 is an apocalyptic number.

538686923 is a deficient number, since it is larger than the sum of its proper divisors (1).

538686923 is an equidigital number, since it uses as much as digits as its factorization.

538686923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 50.

The square root of 538686923 is about 23209.6299625823. The cubic root of 538686923 is about 813.6647049390.

The spelling of 538686923 in words is "five hundred thirty-eight million, six hundred eighty-six thousand, nine hundred twenty-three".