454636489 has 2 divisors, whose sum is σ = 454636490. Its totient is φ = 454636488.

The previous prime is 454636447. The next prime is 454636519. The reversal of 454636489 is 984636454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 414529600 + 40106889 = 20360^2 + 6333^2 .

It is a cyclic number.

It is not a de Polignac number, because 454636489 - 2⁹ = 454635977 is a prime.

It is not a weakly prime, because it can be changed into another prime (454636409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227318244 + 227318245.

It is an arithmetic number, because the mean of its divisors is an integer number (227318245).

Almost surely, 2^454636489 is an apocalyptic number.

It is an amenable number.

454636489 is a deficient number, since it is larger than the sum of its proper divisors (1).

454636489 is an equidigital number, since it uses as much as digits as its factorization.

454636489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2488320, while the sum is 49.

The square root of 454636489 is about 21322.2064758786. The cubic root of 454636489 is about 768.9322858188.

The spelling of 454636489 in words is "four hundred fifty-four million, six hundred thirty-six thousand, four hundred eighty-nine".