444913 has 4 divisors (see below), whose sum is σ = 508480. Its totient is φ = 381348.

The previous prime is 444901. The next prime is 444929. The reversal of 444913 is 319444.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 444913 - 2⁹ = 444401 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (444953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31773 + ... + 31786.

It is an arithmetic number, because the mean of its divisors is an integer number (127120).

2⁴⁴⁴⁹¹³ is an apocalyptic number.

It is an amenable number.

444913 is a deficient number, since it is larger than the sum of its proper divisors (63567).

444913 is an equidigital number, since it uses as much as digits as its factorization.

444913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63566.

The product of its digits is 1728, while the sum is 25.

The square root of 444913 is about 667.0179907619. The cubic root of 444913 is about 76.3410915290.

The spelling of 444913 in words is "four hundred forty-four thousand, nine hundred thirteen".