532421689 has 2 divisors, whose sum is σ = 532421690. Its totient is φ = 532421688.

The previous prime is 532421653. The next prime is 532421699. The reversal of 532421689 is 986124235.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 524776464 + 7645225 = 22908^2 + 2765^2 .

It is a cyclic number.

It is not a de Polignac number, because 532421689 - 2⁹ = 532421177 is a prime.

It is a super-2 number, since 2×532421689² = 566945709835225442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (532421699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266210844 + 266210845.

It is an arithmetic number, because the mean of its divisors is an integer number (266210845).

Almost surely, 2^532421689 is an apocalyptic number.

It is an amenable number.

532421689 is a deficient number, since it is larger than the sum of its proper divisors (1).

532421689 is an equidigital number, since it uses as much as digits as its factorization.

532421689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 40.

The square root of 532421689 is about 23074.2646470045. The cubic root of 532421689 is about 810.4979354687.

The spelling of 532421689 in words is "five hundred thirty-two million, four hundred twenty-one thousand, six hundred eighty-nine".