445032689 has 2 divisors, whose sum is σ = 445032690. Its totient is φ = 445032688.

The previous prime is 445032659. The next prime is 445032697. The reversal of 445032689 is 986230544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 276889600 + 168143089 = 16640^2 + 12967^2 .

It is a cyclic number.

It is not a de Polignac number, because 445032689 - 2¹² = 445028593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (445032619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222516344 + 222516345.

It is an arithmetic number, because the mean of its divisors is an integer number (222516345).

Almost surely, 2^445032689 is an apocalyptic number.

It is an amenable number.

445032689 is a deficient number, since it is larger than the sum of its proper divisors (1).

445032689 is an equidigital number, since it uses as much as digits as its factorization.

445032689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 445032689 is about 21095.7978991078. The cubic root of 445032689 is about 763.4793658982.

The spelling of 445032689 in words is "four hundred forty-five million, thirty-two thousand, six hundred eighty-nine".