522989 has 2 divisors, whose sum is σ = 522990. Its totient is φ = 522988.

The previous prime is 522961. The next prime is 523007. The reversal of 522989 is 989225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 422500 + 100489 = 650^2 + 317^2 .

It is a cyclic number.

It is not a de Polignac number, because 522989 - 2¹² = 518893 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 (522919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261494 + 261495.

It is an arithmetic number, because the mean of its divisors is an integer number (261495).

2⁵²²⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

522989 is a deficient number, since it is larger than the sum of its proper divisors (1).

522989 is an equidigital number, since it uses as much as digits as its factorization.

522989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 35.

The square root of 522989 is about 723.1797840095. The cubic root of 522989 is about 80.5682971698.

The spelling of 522989 in words is "five hundred twenty-two thousand, nine hundred eighty-nine".