4568989 has 2 divisors, whose sum is σ = 4568990. Its totient is φ = 4568988.

The previous prime is 4568981. The next prime is 4569001. The reversal of 4568989 is 9898654.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4284900 + 284089 = 2070^2 + 533^2 .

It is a cyclic number.

It is not a de Polignac number, because 4568989 - 2³ = 4568981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4568981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2284494 + 2284495.

It is an arithmetic number, because the mean of its divisors is an integer number (2284495).

Almost surely, 2^4568989 is an apocalyptic number.

It is an amenable number.

4568989 is a deficient number, since it is larger than the sum of its proper divisors (1).

4568989 is an equidigital number, since it uses as much as digits as its factorization.

4568989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 49.

The square root of 4568989 is about 2137.5193566375. The cubic root of 4568989 is about 165.9357786123.

The spelling of 4568989 in words is "four million, five hundred sixty-eight thousand, nine hundred eighty-nine".