445289087 has 2 divisors, whose sum is σ = 445289088. Its totient is φ = 445289086.

The previous prime is 445289077. The next prime is 445289101. The reversal of 445289087 is 780982544.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445289087 - 2⁶ = 445289023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445289017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222644543 + 222644544.

It is an arithmetic number, because the mean of its divisors is an integer number (222644544).

Almost surely, 2^445289087 is an apocalyptic number.

445289087 is a deficient number, since it is larger than the sum of its proper divisors (1).

445289087 is an equidigital number, since it uses as much as digits as its factorization.

445289087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 445289087 is about 21101.8740163048. The cubic root of 445289087 is about 763.6259596247.

It can be divided in two parts, 4452 and 89087, that added together give a palindrome (93539).

The spelling of 445289087 in words is "four hundred forty-five million, two hundred eighty-nine thousand, eighty-seven".