445078987 has 2 divisors, whose sum is σ = 445078988. Its totient is φ = 445078986.

The previous prime is 445078961. The next prime is 445079017. The reversal of 445078987 is 789870544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445078987 - 2¹¹ = 445076939 is a prime.

It is not a weakly prime, because it can be changed into another prime (445078927) 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, 222539493 + 222539494.

It is an arithmetic number, because the mean of its divisors is an integer number (222539494).

Almost surely, 2^445078987 is an apocalyptic number.

445078987 is a deficient number, since it is larger than the sum of its proper divisors (1).

445078987 is an equidigital number, since it uses as much as digits as its factorization.

445078987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2257920, while the sum is 52.

The square root of 445078987 is about 21096.8951981091. The cubic root of 445078987 is about 763.5058406140.

The spelling of 445078987 in words is "four hundred forty-five million, seventy-eight thousand, nine hundred eighty-seven".