744247 has 4 divisors (see below), whose sum is σ = 850576. Its totient is φ = 637920.

The previous prime is 744239. The next prime is 744251. The reversal of 744247 is 742447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742447 = 71 ⋅10457.

It is a cyclic number.

It is not a de Polignac number, because 744247 - 2³ = 744239 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53154 + ... + 53167.

It is an arithmetic number, because the mean of its divisors is an integer number (212644).

2⁷⁴⁴²⁴⁷ is an apocalyptic number.

744247 is a deficient number, since it is larger than the sum of its proper divisors (106329).

744247 is a wasteful number, since it uses less digits than its factorization.

744247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106328.

The product of its digits is 6272, while the sum is 28.

The square root of 744247 is about 862.6975136164. The cubic root of 744247 is about 90.6231243369.

The spelling of 744247 in words is "seven hundred forty-four thousand, two hundred forty-seven", and thus it is an iban number.