4233989 has 2 divisors, whose sum is σ = 4233990. Its totient is φ = 4233988.

The previous prime is 4233973. The next prime is 4234007. The reversal of 4233989 is 9893324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3940225 + 293764 = 1985^2 + 542^2 .

It is a cyclic number.

It is not a de Polignac number, because 4233989 - 2⁴ = 4233973 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4233919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2116994 + 2116995.

It is an arithmetic number, because the mean of its divisors is an integer number (2116995).

Almost surely, 2^4233989 is an apocalyptic number.

It is an amenable number.

4233989 is a deficient number, since it is larger than the sum of its proper divisors (1).

4233989 is an equidigital number, since it uses as much as digits as its factorization.

4233989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 38.

The square root of 4233989 is about 2057.6659106862. The cubic root of 4233989 is about 161.7769245854.

The spelling of 4233989 in words is "four million, two hundred thirty-three thousand, nine hundred eighty-nine".