4536989 has 2 divisors, whose sum is σ = 4536990. Its totient is φ = 4536988.

The previous prime is 4536967. The next prime is 4537007. The reversal of 4536989 is 9896354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3771364 + 765625 = 1942^2 + 875^2 .

It is a cyclic number.

It is not a de Polignac number, because 4536989 - 2¹² = 4532893 is a prime.

It is a super-2 number, since 2×4536989² = 41168538372242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4536929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2268494 + 2268495.

It is an arithmetic number, because the mean of its divisors is an integer number (2268495).

Almost surely, 2^4536989 is an apocalyptic number.

It is an amenable number.

4536989 is a deficient number, since it is larger than the sum of its proper divisors (1).

4536989 is an equidigital number, since it uses as much as digits as its factorization.

4536989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 44.

The square root of 4536989 is about 2130.0208919163. The cubic root of 4536989 is about 165.5474804670.

The spelling of 4536989 in words is "four million, five hundred thirty-six thousand, nine hundred eighty-nine".