534556643 has 2 divisors, whose sum is σ = 534556644. Its totient is φ = 534556642.

The previous prime is 534556637. The next prime is 534556661. The reversal of 534556643 is 346655435.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 534556643 - 2²⁶ = 467447779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 534556643.

It is not a weakly prime, because it can be changed into another prime (534556613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267278321 + 267278322.

It is an arithmetic number, because the mean of its divisors is an integer number (267278322).

Almost surely, 2^534556643 is an apocalyptic number.

534556643 is a deficient number, since it is larger than the sum of its proper divisors (1).

534556643 is an equidigital number, since it uses as much as digits as its factorization.

534556643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648000, while the sum is 41.

The square root of 534556643 is about 23120.4810287329. The cubic root of 534556643 is about 811.5798273286.

The spelling of 534556643 in words is "five hundred thirty-four million, five hundred fifty-six thousand, six hundred forty-three".