538791 has 16 divisors (see below), whose sum is σ = 812160. Its totient is φ = 314720.

The previous prime is 538789. The next prime is 538799. The reversal of 538791 is 197835.

It is a cyclic number.

It is not a de Polignac number, because 538791 - 2¹ = 538789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nialpdrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 538791.

It is not an unprimeable number, because it can be changed into a prime (538799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 676 + ... + 1238.

It is an arithmetic number, because the mean of its divisors is an integer number (50760).

2⁵³⁸⁷⁹¹ is an apocalyptic number.

538791 is a deficient number, since it is larger than the sum of its proper divisors (273369).

538791 is a wasteful number, since it uses less digits than its factorization.

538791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606.

The product of its digits is 7560, while the sum is 33.

The square root of 538791 is about 734.0238415746. The cubic root of 538791 is about 81.3717102924.

The spelling of 538791 in words is "five hundred thirty-eight thousand, seven hundred ninety-one".