744407665 has 8 divisors (see below), whose sum is σ = 905871168. Its totient is φ = 587138160.

The previous prime is 744407647. The next prime is 744407687. The reversal of 744407665 is 566704447.

744407665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 744407665 - 2⁵ = 744407633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1048107 + ... + 1048816.

It is an arithmetic number, because the mean of its divisors is an integer number (113233896).

Almost surely, 2^744407665 is an apocalyptic number.

It is an amenable number.

744407665 is a deficient number, since it is larger than the sum of its proper divisors (161463503).

744407665 is a wasteful number, since it uses less digits than its factorization.

744407665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096999.

The product of its (nonzero) digits is 564480, while the sum is 43.

The square root of 744407665 is about 27283.8352326061. The cubic root of 744407665 is about 906.2964498427.

The spelling of 744407665 in words is "seven hundred forty-four million, four hundred seven thousand, six hundred sixty-five".