444122987 has 16 divisors (see below), whose sum is σ = 564164352. Its totient is φ = 339537120.

The previous prime is 444122971. The next prime is 444122989. The reversal of 444122987 is 789221444.

It is a cyclic number.

It is not a de Polignac number, because 444122987 - 2⁴ = 444122971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444122989) 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 in 15 ways as a sum of consecutive naturals, for example, 50333 + ... + 58494.

It is an arithmetic number, because the mean of its divisors is an integer number (35260272).

Almost surely, 2^444122987 is an apocalyptic number.

444122987 is a deficient number, since it is larger than the sum of its proper divisors (120041365).

444122987 is a wasteful number, since it uses less digits than its factorization.

444122987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108898.

The product of its digits is 129024, while the sum is 41.

The square root of 444122987 is about 21074.2256559998. The cubic root of 444122987 is about 762.9587955352.

The spelling of 444122987 in words is "four hundred forty-four million, one hundred twenty-two thousand, nine hundred eighty-seven".