444446687 has 8 divisors (see below), whose sum is σ = 468983520. Its totient is φ = 420344320.

The previous prime is 444446677. The next prime is 444446693. The reversal of 444446687 is 786644444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 444446687 - 2¹² = 444442591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444446677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106514 + ... + 110607.

It is an arithmetic number, because the mean of its divisors is an integer number (58622940).

Almost surely, 2^444446687 is an apocalyptic number.

444446687 is a deficient number, since it is larger than the sum of its proper divisors (24536833).

444446687 is a wasteful number, since it uses less digits than its factorization.

444446687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217233.

The product of its digits is 2064384, while the sum is 47.

The square root of 444446687 is about 21081.9042545971. The cubic root of 444446687 is about 763.1441119094.

The spelling of 444446687 in words is "four hundred forty-four million, four hundred forty-six thousand, six hundred eighty-seven".