744213 has 4 divisors (see below), whose sum is σ = 992288. Its totient is φ = 496140.

The previous prime is 744203. The next prime is 744221. The reversal of 744213 is 312447.

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, and also an emirpimes, since its reverse is a distinct semiprime: 312447 = 3 ⋅104149.

It is not a de Polignac number, because 744213 - 2¹⁷ = 613141 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 744213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744203) 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, 124033 + ... + 124038.

It is an arithmetic number, because the mean of its divisors is an integer number (248072).

2⁷⁴⁴²¹³ is an apocalyptic number.

It is an amenable number.

744213 is a deficient number, since it is larger than the sum of its proper divisors (248075).

744213 is a wasteful number, since it uses less digits than its factorization.

744213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248074.

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

The square root of 744213 is about 862.6778077591. The cubic root of 744213 is about 90.6217443143.

The spelling of 744213 in words is "seven hundred forty-four thousand, two hundred thirteen".