538913 has 4 divisors (see below), whose sum is σ = 562368. Its totient is φ = 515460.

The previous prime is 538877. The next prime is 538921. The reversal of 538913 is 319835.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 538913 - 2¹⁶ = 473377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (538943) 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 in 3 ways as a sum of consecutive naturals, for example, 11693 + ... + 11738.

It is an arithmetic number, because the mean of its divisors is an integer number (140592).

2⁵³⁸⁹¹³ is an apocalyptic number.

It is an amenable number.

538913 is a deficient number, since it is larger than the sum of its proper divisors (23455).

538913 is a wasteful number, since it uses less digits than its factorization.

538913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23454.

The product of its digits is 3240, while the sum is 29.

The square root of 538913 is about 734.1069404385. The cubic root of 538913 is about 81.3778515726.

It can be divided in two parts, 538 and 913, that multiplied together give a palindrome (491194).

The spelling of 538913 in words is "five hundred thirty-eight thousand, nine hundred thirteen".