8933989 has 2 divisors, whose sum is σ = 8933990. Its totient is φ = 8933988.

The previous prime is 8933963. The next prime is 8934017. The reversal of 8933989 is 9893398.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7452900 + 1481089 = 2730^2 + 1217^2 .

It is a cyclic number.

It is not a de Polignac number, because 8933989 - 2⁷ = 8933861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8933929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4466994 + 4466995.

It is an arithmetic number, because the mean of its divisors is an integer number (4466995).

Almost surely, 2^8933989 is an apocalyptic number.

It is an amenable number.

8933989 is a deficient number, since it is larger than the sum of its proper divisors (1).

8933989 is an equidigital number, since it uses as much as digits as its factorization.

8933989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 49.

The square root of 8933989 is about 2988.9779189549. The cubic root of 8933989 is about 207.4985842067.

The spelling of 8933989 in words is "eight million, nine hundred thirty-three thousand, nine hundred eighty-nine".