4457489 has 2 divisors, whose sum is σ = 4457490. Its totient is φ = 4457488.

The previous prime is 4457477. The next prime is 4457491. The reversal of 4457489 is 9847544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3763600 + 693889 = 1940^2 + 833^2 .

It is a cyclic number.

It is not a de Polignac number, because 4457489 - 2⁴ = 4457473 is a prime.

Together with 4457491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4457429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2228744 + 2228745.

It is an arithmetic number, because the mean of its divisors is an integer number (2228745).

Almost surely, 2^4457489 is an apocalyptic number.

It is an amenable number.

4457489 is a deficient number, since it is larger than the sum of its proper divisors (1).

4457489 is an equidigital number, since it uses as much as digits as its factorization.

4457489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 41.

The square root of 4457489 is about 2111.2766280144. The cubic root of 4457489 is about 164.5748343775.

The spelling of 4457489 in words is "four million, four hundred fifty-seven thousand, four hundred eighty-nine".