534659989 has 2 divisors, whose sum is σ = 534659990. Its totient is φ = 534659988.

The previous prime is 534659977. The next prime is 534660017. The reversal of 534659989 is 989956435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 343805764 + 190854225 = 18542^2 + 13815^2 .

It is a cyclic number.

It is not a de Polignac number, because 534659989 - 2⁷ = 534659861 is a prime.

It is a super-2 number, since 2×534659989² = 571722607674960242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (534659929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267329994 + 267329995.

It is an arithmetic number, because the mean of its divisors is an integer number (267329995).

Almost surely, 2^534659989 is an apocalyptic number.

It is an amenable number.

534659989 is a deficient number, since it is larger than the sum of its proper divisors (1).

534659989 is an equidigital number, since it uses as much as digits as its factorization.

534659989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10497600, while the sum is 58.

The square root of 534659989 is about 23122.7158655725. The cubic root of 534659989 is about 811.6321249509.

The spelling of 534659989 in words is "five hundred thirty-four million, six hundred fifty-nine thousand, nine hundred eighty-nine".