512389 has 2 divisors, whose sum is σ = 512390. Its totient is φ = 512388.

The previous prime is 512353. The next prime is 512419. The reversal of 512389 is 983215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 324900 + 187489 = 570^2 + 433^2 .

It is a cyclic number.

It is not a de Polignac number, because 512389 - 2¹³ = 504197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256194 + 256195.

It is an arithmetic number, because the mean of its divisors is an integer number (256195).

2⁵¹²³⁸⁹ is an apocalyptic number.

It is an amenable number.

512389 is a deficient number, since it is larger than the sum of its proper divisors (1).

512389 is an equidigital number, since it uses as much as digits as its factorization.

512389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 28.

The square root of 512389 is about 715.8135232028. The cubic root of 512389 is about 80.0202552878.

The spelling of 512389 in words is "five hundred twelve thousand, three hundred eighty-nine".