534531643 has 4 divisors (see below), whose sum is σ = 534892120. Its totient is φ = 534171168.

The previous prime is 534531631. The next prime is 534531649. The reversal of 534531643 is 346135435.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 534531643 - 2¹⁷ = 534400571 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 534531599 and 534531608.

It is not an unprimeable number, because it can be changed into a prime (534531649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178005 + ... + 180982.

It is an arithmetic number, because the mean of its divisors is an integer number (133723030).

Almost surely, 2^534531643 is an apocalyptic number.

534531643 is a deficient number, since it is larger than the sum of its proper divisors (360477).

534531643 is a wasteful number, since it uses less digits than its factorization.

534531643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360476.

The product of its digits is 64800, while the sum is 34.

The square root of 534531643 is about 23119.9403762207. The cubic root of 534531643 is about 811.5671752163.

The spelling of 534531643 in words is "five hundred thirty-four million, five hundred thirty-one thousand, six hundred forty-three".