8936989 has 2 divisors, whose sum is σ = 8936990. Its totient is φ = 8936988.

The previous prime is 8936981. The next prime is 8937013. The reversal of 8936989 is 9896398.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5212089 + 3724900 = 2283^2 + 1930^2 .

It is a cyclic number.

It is not a de Polignac number, because 8936989 - 2³ = 8936981 is a prime.

It is a super-2 number, since 2×8936989² = 159739544772242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8936981) 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, 4468494 + 4468495.

It is an arithmetic number, because the mean of its divisors is an integer number (4468495).

Almost surely, 2^8936989 is an apocalyptic number.

It is an amenable number.

8936989 is a deficient number, since it is larger than the sum of its proper divisors (1).

8936989 is an equidigital number, since it uses as much as digits as its factorization.

8936989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 52.

The square root of 8936989 is about 2989.4797206203. The cubic root of 8936989 is about 207.5218073563.

The spelling of 8936989 in words is "eight million, nine hundred thirty-six thousand, nine hundred eighty-nine".