444387 has 8 divisors (see below), whose sum is σ = 596736. Its totient is φ = 294152.

The previous prime is 444349. The next prime is 444401. The reversal of 444387 is 783444.

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

It is a cyclic number.

It is not a de Polignac number, because 444387 - 2⁸ = 444131 is a prime.

444387 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444307) 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, 58 + ... + 944.

It is an arithmetic number, because the mean of its divisors is an integer number (74592).

2⁴⁴⁴³⁸⁷ is an apocalyptic number.

444387 is a deficient number, since it is larger than the sum of its proper divisors (152349).

444387 is a wasteful number, since it uses less digits than its factorization.

444387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057.

The product of its digits is 10752, while the sum is 30.

The square root of 444387 is about 666.6235819411. The cubic root of 444387 is about 76.3109948215.

The spelling of 444387 in words is "four hundred forty-four thousand, three hundred eighty-seven".