4744447 has 4 divisors (see below), whose sum is σ = 4779216. Its totient is φ = 4709680.

The previous prime is 4744423. The next prime is 4744459. The reversal of 4744447 is 7444474.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4744447 is a prime.

It is an Ulam number.

It is a Duffinian number.

4744447 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4744247) 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, 17179 + ... + 17452.

It is an arithmetic number, because the mean of its divisors is an integer number (1194804).

Almost surely, 2^4744447 is an apocalyptic number.

4744447 is a deficient number, since it is larger than the sum of its proper divisors (34769).

4744447 is a wasteful number, since it uses less digits than its factorization.

4744447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34768.

The product of its digits is 50176, while the sum is 34.

The square root of 4744447 is about 2178.1751536550. The cubic root of 4744447 is about 168.0332393603.

The spelling of 4744447 in words is "four million, seven hundred forty-four thousand, four hundred forty-seven".