744321 has 8 divisors (see below), whose sum is σ = 1000224. Its totient is φ = 492320.

The previous prime is 744313. The next prime is 744353. The reversal of 744321 is 123447.

744321 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 a cyclic number.

It is not a de Polignac number, because 744321 - 2³ = 744313 is a prime.

It is a nialpdrome in base 10.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 744321.

It is not an unprimeable number, because it can be changed into a prime (744301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495 + ... + 1316.

It is an arithmetic number, because the mean of its divisors is an integer number (125028).

2⁷⁴⁴³²¹ is an apocalyptic number.

It is an amenable number.

744321 is a deficient number, since it is larger than the sum of its proper divisors (255903).

744321 is a wasteful number, since it uses less digits than its factorization.

744321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951.

The product of its digits is 672, while the sum is 21.

The square root of 744321 is about 862.7404012796. The cubic root of 744321 is about 90.6261277703.

Adding to 744321 its reverse (123447), we get a palindrome (867768).

The spelling of 744321 in words is "seven hundred forty-four thousand, three hundred twenty-one", and thus it is an iban number.