744404447 has 4 divisors (see below), whose sum is σ = 749400600. Its totient is φ = 739408296.

The previous prime is 744404417. The next prime is 744404473.

744404447 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 744404447 - 2⁶ = 744404383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 744404447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744404417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2497853 + ... + 2498150.

It is an arithmetic number, because the mean of its divisors is an integer number (187350150).

Almost surely, 2^744404447 is an apocalyptic number.

744404447 is a deficient number, since it is larger than the sum of its proper divisors (4996153).

744404447 is a wasteful number, since it uses less digits than its factorization.

744404447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4996152.

The product of its (nonzero) digits is 200704, while the sum is 38.

The square root of 744404447 is about 27283.7762598948. The cubic root of 744404447 is about 906.2951438978.

It can be divided in two parts, 74440 and 4447, that added together give a palindrome (78887).

The spelling of 744404447 in words is "seven hundred forty-four million, four hundred four thousand, four hundred forty-seven".