524869 has 2 divisors, whose sum is σ = 524870. Its totient is φ = 524868.

The previous prime is 524863. The next prime is 524873. The reversal of 524869 is 968425.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 471969 + 52900 = 687^2 + 230^2 .

It is a cyclic number.

It is not a de Polignac number, because 524869 - 2¹⁷ = 393797 is a prime.

It is a super-2 number, since 2×524869² = 550974934322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (524863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262434 + 262435.

It is an arithmetic number, because the mean of its divisors is an integer number (262435).

2⁵²⁴⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

524869 is a deficient number, since it is larger than the sum of its proper divisors (1).

524869 is an equidigital number, since it uses as much as digits as its factorization.

524869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 34.

The square root of 524869 is about 724.4784330813. The cubic root of 524869 is about 80.6647219287.

Subtracting 524869 from its reverse (968425), we obtain a square (443556 = 666²).

The spelling of 524869 in words is "five hundred twenty-four thousand, eight hundred sixty-nine".