534391 has 16 divisors (see below), whose sum is σ = 651168. Its totient is φ = 432000.

The previous prime is 534371. The next prime is 534403. The reversal of 534391 is 193435.

It is a 7-Lehmer number, since φ(534391) divides (534391-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 534391 - 2⁹ = 533879 is a prime.

It is a Duffinian number.

534391 is a Rhonda number in base 10.

Its product of digits (1620) is a multiple of the sum of its prime divisors (162).

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5241 + ... + 5341.

It is an arithmetic number, because the mean of its divisors is an integer number (40698).

2⁵³⁴³⁹¹ is an apocalyptic number.

534391 is a deficient number, since it is larger than the sum of its proper divisors (116777).

534391 is a wasteful number, since it uses less digits than its factorization.

534391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162.

The product of its digits is 1620, while the sum is 25.

The square root of 534391 is about 731.0205195478. The cubic root of 534391 is about 81.1495990622.

It can be divided in two parts, 53 and 4391, that added together give a palindrome (4444).

The spelling of 534391 in words is "five hundred thirty-four thousand, three hundred ninety-one".