4236989 has 2 divisors, whose sum is σ = 4236990. Its totient is φ = 4236988.

The previous prime is 4236983. The next prime is 4236997. The reversal of 4236989 is 9896324.

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., 3833764 + 403225 = 1958^2 + 635^2 .

It is a cyclic number.

It is not a de Polignac number, because 4236989 - 2²⁰ = 3188413 is a prime.

It is a super-2 number, since 2×4236989² = 35904151572242, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4¹¹ + 2¹¹ + 3 + 6⁵ + 9 + 8⁵ + 9² .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4236983) 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, 2118494 + 2118495.

It is an arithmetic number, because the mean of its divisors is an integer number (2118495).

Almost surely, 2^4236989 is an apocalyptic number.

It is an amenable number.

4236989 is a deficient number, since it is larger than the sum of its proper divisors (1).

4236989 is an equidigital number, since it uses as much as digits as its factorization.

4236989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 41.

The square root of 4236989 is about 2058.3947629160. The cubic root of 4236989 is about 161.8151246682.

It can be divided in two parts, 4236 and 989, that added together give a palindrome (5225).

The spelling of 4236989 in words is "four million, two hundred thirty-six thousand, nine hundred eighty-nine".