444065687 has 32 divisors (see below), whose sum is σ = 525305088. Its totient is φ = 371621376.

The previous prime is 444065681. The next prime is 444065693. The reversal of 444065687 is 786560444.

It is an interprime number because it is at equal distance from previous prime (444065681) and next prime (444065693).

It is a cyclic number.

It is not a de Polignac number, because 444065687 - 2⁸ = 444065431 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444065681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 788468 + ... + 789030.

It is an arithmetic number, because the mean of its divisors is an integer number (16415784).

Almost surely, 2^444065687 is an apocalyptic number.

444065687 is a deficient number, since it is larger than the sum of its proper divisors (81239401).

444065687 is a wasteful number, since it uses less digits than its factorization.

444065687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719.

The product of its (nonzero) digits is 645120, while the sum is 44.

The square root of 444065687 is about 21072.8661315921. The cubic root of 444065687 is about 762.9259822376.

The spelling of 444065687 in words is "four hundred forty-four million, sixty-five thousand, six hundred eighty-seven".