8730665989 has 2 divisors, whose sum is σ = 8730665990. Its totient is φ = 8730665988.

The previous prime is 8730665981. The next prime is 8730666023. The reversal of 8730665989 is 9895660378.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5851485025 + 2879180964 = 76495^2 + 53658^2 .

It is a cyclic number.

It is not a de Polignac number, because 8730665989 - 2³ = 8730665981 is a prime.

It is a super-2 number, since 2×8730665989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8730665981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4365332994 + 4365332995.

It is an arithmetic number, because the mean of its divisors is an integer number (4365332995).

Almost surely, 2^8730665989 is an apocalyptic number.

It is an amenable number.

8730665989 is a deficient number, since it is larger than the sum of its proper divisors (1).

8730665989 is an equidigital number, since it uses as much as digits as its factorization.

8730665989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19595520, while the sum is 61.

The square root of 8730665989 is about 93438.0328827614. The cubic root of 8730665989 is about 2059.1237978053.

The spelling of 8730665989 in words is "eight billion, seven hundred thirty million, six hundred sixty-five thousand, nine hundred eighty-nine".