459649 has 2 divisors, whose sum is σ = 459650. Its totient is φ = 459648.

The previous prime is 459647. The next prime is 459671. The reversal of 459649 is 946954.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442225 + 17424 = 665^2 + 132^2 .

It is a cyclic number.

It is not a de Polignac number, because 459649 - 2¹ = 459647 is a prime.

It is a super-2 number, since 2×459649² = 422554406402, which contains 22 as substring.

Together with 459647, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (459647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229824 + 229825.

It is an arithmetic number, because the mean of its divisors is an integer number (229825).

2⁴⁵⁹⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

459649 is a deficient number, since it is larger than the sum of its proper divisors (1).

459649 is an equidigital number, since it uses as much as digits as its factorization.

459649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 37.

The square root of 459649 is about 677.9741882992. The cubic root of 459649 is about 77.1747870631.

The spelling of 459649 in words is "four hundred fifty-nine thousand, six hundred forty-nine".