6534431 has 4 divisors (see below), whose sum is σ = 6541032. Its totient is φ = 6527832.

The previous prime is 6534419. The next prime is 6534433. The reversal of 6534431 is 1344356.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6534431 - 2¹⁴ = 6518047 is a prime.

It is a super-2 number, since 2×6534431² = 85397576987522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6534431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6534433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1481 + ... + 3906.

It is an arithmetic number, because the mean of its divisors is an integer number (1635258).

Almost surely, 2^6534431 is an apocalyptic number.

6534431 is a deficient number, since it is larger than the sum of its proper divisors (6601).

6534431 is a wasteful number, since it uses less digits than its factorization.

6534431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6600.

The product of its digits is 4320, while the sum is 26.

The square root of 6534431 is about 2556.2533129563. The cubic root of 6534431 is about 186.9545010222.

Adding to 6534431 its reverse (1344356), we get a palindrome (7878787).

The spelling of 6534431 in words is "six million, five hundred thirty-four thousand, four hundred thirty-one".