538291 has 8 divisors (see below), whose sum is σ = 592704. Its totient is φ = 485760.

The previous prime is 538283. The next prime is 538297. The reversal of 538291 is 192835.

538291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 538291 - 2³ = 538283 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (538297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171 + ... + 1051.

It is an arithmetic number, because the mean of its divisors is an integer number (74088).

2⁵³⁸²⁹¹ is an apocalyptic number.

538291 is a deficient number, since it is larger than the sum of its proper divisors (54413).

538291 is a wasteful number, since it uses less digits than its factorization.

538291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941.

The product of its digits is 2160, while the sum is 28.

The square root of 538291 is about 733.6831741290. The cubic root of 538291 is about 81.3465314215.

The spelling of 538291 in words is "five hundred thirty-eight thousand, two hundred ninety-one".