445589369 has 2 divisors, whose sum is σ = 445589370. Its totient is φ = 445589368.

The previous prime is 445589359. The next prime is 445589371. The reversal of 445589369 is 963985544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 436810000 + 8779369 = 20900^2 + 2963^2 .

It is a cyclic number.

It is not a de Polignac number, because 445589369 - 2¹⁶ = 445523833 is a prime.

It is a super-2 number, since 2×445589369² = 397099771531636322, which contains 22 as substring.

Together with 445589371, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 445589369.

It is not a weakly prime, because it can be changed into another prime (445589359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222794684 + 222794685.

It is an arithmetic number, because the mean of its divisors is an integer number (222794685).

Almost surely, 2^445589369 is an apocalyptic number.

It is an amenable number.

445589369 is a deficient number, since it is larger than the sum of its proper divisors (1).

445589369 is an equidigital number, since it uses as much as digits as its factorization.

445589369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4665600, while the sum is 53.

The square root of 445589369 is about 21108.9878724680. The cubic root of 445589369 is about 763.7975721888.

The spelling of 445589369 in words is "four hundred forty-five million, five hundred eighty-nine thousand, three hundred sixty-nine".