6534389 has 2 divisors, whose sum is σ = 6534390. Its totient is φ = 6534388.

The previous prime is 6534379. The next prime is 6534419. The reversal of 6534389 is 9834356.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4765489 + 1768900 = 2183^2 + 1330^2 .

It is a cyclic number.

It is not a de Polignac number, because 6534389 - 2⁸ = 6534133 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6534329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3267194 + 3267195.

It is an arithmetic number, because the mean of its divisors is an integer number (3267195).

Almost surely, 2^6534389 is an apocalyptic number.

It is an amenable number.

6534389 is a deficient number, since it is larger than the sum of its proper divisors (1).

6534389 is an equidigital number, since it uses as much as digits as its factorization.

6534389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 38.

The square root of 6534389 is about 2556.2450977948. The cubic root of 6534389 is about 186.9541004719.

The spelling of 6534389 in words is "six million, five hundred thirty-four thousand, three hundred eighty-nine".