444397 has 4 divisors (see below), whose sum is σ = 470556. Its totient is φ = 418240.

The previous prime is 444349. The next prime is 444401. The reversal of 444397 is 793444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 329476 + 114921 = 574^2 + 339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444397 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 (444307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13054 + ... + 13087.

It is an arithmetic number, because the mean of its divisors is an integer number (117639).

2⁴⁴⁴³⁹⁷ is an apocalyptic number.

It is an amenable number.

444397 is a deficient number, since it is larger than the sum of its proper divisors (26159).

444397 is a wasteful number, since it uses less digits than its factorization.

444397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26158.

The product of its digits is 12096, while the sum is 31.

The square root of 444397 is about 666.6310823837. The cubic root of 444397 is about 76.3115672237.

It can be divided in two parts, 444 and 397, that added together give a square (841 = 29²).

The spelling of 444397 in words is "four hundred forty-four thousand, three hundred ninety-seven".