744523 has 4 divisors (see below), whose sum is σ = 801808. Its totient is φ = 687240.

The previous prime is 744511. The next prime is 744539. The reversal of 744523 is 325447.

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 744523 - 2¹⁷ = 613451 is a prime.

It is a Duffinian number.

744523 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (744503) 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, 28623 + ... + 28648.

It is an arithmetic number, because the mean of its divisors is an integer number (200452).

2⁷⁴⁴⁵²³ is an apocalyptic number.

744523 is a deficient number, since it is larger than the sum of its proper divisors (57285).

744523 is a wasteful number, since it uses less digits than its factorization.

744523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57284.

The product of its digits is 3360, while the sum is 25.

The square root of 744523 is about 862.8574621570. The cubic root of 744523 is about 90.6343253186.

The spelling of 744523 in words is "seven hundred forty-four thousand, five hundred twenty-three".