444653 has 4 divisors (see below), whose sum is σ = 485088. Its totient is φ = 404220.

The previous prime is 444649. The next prime is 444671. The reversal of 444653 is 356444.

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 444653 - 2² = 444649 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 444653.

It is not an unprimeable number, because it can be changed into a prime (444623) 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, 20201 + ... + 20222.

It is an arithmetic number, because the mean of its divisors is an integer number (121272).

2⁴⁴⁴⁶⁵³ is an apocalyptic number.

It is an amenable number.

444653 is a deficient number, since it is larger than the sum of its proper divisors (40435).

444653 is a wasteful number, since it uses less digits than its factorization.

444653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40434.

The product of its digits is 5760, while the sum is 26.

The square root of 444653 is about 666.8230649880. The cubic root of 444653 is about 76.3262177960.

Subtracting from 444653 its reverse (356444), we obtain a square (88209 = 297²).

The spelling of 444653 in words is "four hundred forty-four thousand, six hundred fifty-three".