538893389 has 2 divisors, whose sum is σ = 538893390. Its totient is φ = 538893388.

The previous prime is 538893361. The next prime is 538893403. The reversal of 538893389 is 983398835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 412780489 + 126112900 = 20317^2 + 11230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538893389 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538893359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269446694 + 269446695.

It is an arithmetic number, because the mean of its divisors is an integer number (269446695).

Almost surely, 2^538893389 is an apocalyptic number.

It is an amenable number.

538893389 is a deficient number, since it is larger than the sum of its proper divisors (1).

538893389 is an equidigital number, since it uses as much as digits as its factorization.

538893389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5598720, while the sum is 56.

The square root of 538893389 is about 23214.0773885158. The cubic root of 538893389 is about 813.7686444950.

The spelling of 538893389 in words is "five hundred thirty-eight million, eight hundred ninety-three thousand, three hundred eighty-nine".