536688389 has 2 divisors, whose sum is σ = 536688390. Its totient is φ = 536688388.

The previous prime is 536688343. The next prime is 536688391. The reversal of 536688389 is 983886635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 483252289 + 53436100 = 21983^2 + 7310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-536688389 is a prime.

Together with 536688391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (536688989) 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 as a sum of consecutive naturals, namely, 268344194 + 268344195.

It is an arithmetic number, because the mean of its divisors is an integer number (268344195).

Almost surely, 2^536688389 is an apocalyptic number.

It is an amenable number.

536688389 is a deficient number, since it is larger than the sum of its proper divisors (1).

536688389 is an equidigital number, since it uses as much as digits as its factorization.

536688389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7464960, while the sum is 56.

The square root of 536688389 is about 23166.5359732525. The cubic root of 536688389 is about 812.6572231918.

The spelling of 536688389 in words is "five hundred thirty-six million, six hundred eighty-eight thousand, three hundred eighty-nine".