1064643589 has 2 divisors, whose sum is σ = 1064643590. Its totient is φ = 1064643588.

The previous prime is 1064643529. The next prime is 1064643637. The reversal of 1064643589 is 9853464601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 980316100 + 84327489 = 31310^2 + 9183^2 .

It is a cyclic number.

It is not a de Polignac number, because 1064643589 - 2⁹ = 1064643077 is a prime.

It is a super-2 number, since 2×1064643589² = 2266931943197601842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1064643529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532321794 + 532321795.

It is an arithmetic number, because the mean of its divisors is an integer number (532321795).

Almost surely, 2^1064643589 is an apocalyptic number.

It is an amenable number.

1064643589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1064643589 is an equidigital number, since it uses as much as digits as its factorization.

1064643589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 1064643589 is about 32628.8766125958. The cubic root of 1064643589 is about 1021.0995412528.

The spelling of 1064643589 in words is "one billion, sixty-four million, six hundred forty-three thousand, five hundred eighty-nine".