604448989 has 2 divisors, whose sum is σ = 604448990. Its totient is φ = 604448988.

The previous prime is 604448953. The next prime is 604449029. The reversal of 604448989 is 989844406.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 574560900 + 29888089 = 23970^2 + 5467^2 .

It is a cyclic number.

It is not a de Polignac number, because 604448989 - 2⁷ = 604448861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (604443989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302224494 + 302224495.

It is an arithmetic number, because the mean of its divisors is an integer number (302224495).

Almost surely, 2^604448989 is an apocalyptic number.

It is an amenable number.

604448989 is a deficient number, since it is larger than the sum of its proper divisors (1).

604448989 is an equidigital number, since it uses as much as digits as its factorization.

604448989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 52.

The square root of 604448989 is about 24585.5443096141. The cubic root of 604448989 is about 845.5122130539.

The spelling of 604448989 in words is "six hundred four million, four hundred forty-eight thousand, nine hundred eighty-nine".