538789 has 2 divisors, whose sum is σ = 538790. Its totient is φ = 538788.

The previous prime is 538777. The next prime is 538799. The reversal of 538789 is 987835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 293764 + 245025 = 542^2 + 495^2 .

It is a cyclic number.

It is not a de Polignac number, because 538789 - 2¹³ = 530597 is a prime.

It is a plaindrome in base 11.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269394 + 269395.

It is an arithmetic number, because the mean of its divisors is an integer number (269395).

2⁵³⁸⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

538789 is a deficient number, since it is larger than the sum of its proper divisors (1).

538789 is an equidigital number, since it uses as much as digits as its factorization.

538789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 40.

The square root of 538789 is about 734.0224792198. The cubic root of 538789 is about 81.3716096080.

It can be divided in two parts, 5387 and 89, that added together give a square (5476 = 74²).

The spelling of 538789 in words is "five hundred thirty-eight thousand, seven hundred eighty-nine".