4609489 has 2 divisors, whose sum is σ = 4609490. Its totient is φ = 4609488.

The previous prime is 4609481. The next prime is 4609511. The reversal of 4609489 is 9849064.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4601025 + 8464 = 2145^2 + 92^2 .

It is a cyclic number.

It is not a de Polignac number, because 4609489 - 2³ = 4609481 is a prime.

It is a super-2 number, since 2×4609489² = 42494777682242, which contains 22 as substring.

It is a Chen prime.

It is a nialpdrome in base 13.

It is not a weakly prime, because it can be changed into another prime (4609481) 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, 2304744 + 2304745.

It is an arithmetic number, because the mean of its divisors is an integer number (2304745).

Almost surely, 2^4609489 is an apocalyptic number.

It is an amenable number.

4609489 is a deficient number, since it is larger than the sum of its proper divisors (1).

4609489 is an equidigital number, since it uses as much as digits as its factorization.

4609489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 4609489 is about 2146.9720538470. The cubic root of 4609489 is about 166.4246277843.

The spelling of 4609489 in words is "four million, six hundred nine thousand, four hundred eighty-nine".