4487447 has 4 divisors (see below), whose sum is σ = 4513560. Its totient is φ = 4461336.

The previous prime is 4487423. The next prime is 4487449. The reversal of 4487447 is 7447844.

It is a happy number.

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 4487447 - 2¹⁸ = 4225303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4487447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4487449) 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, 12797 + ... + 13142.

It is an arithmetic number, because the mean of its divisors is an integer number (1128390).

Almost surely, 2^4487447 is an apocalyptic number.

4487447 is a deficient number, since it is larger than the sum of its proper divisors (26113).

4487447 is a wasteful number, since it uses less digits than its factorization.

4487447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26112.

The product of its digits is 100352, while the sum is 38.

The square root of 4487447 is about 2118.3595067882. The cubic root of 4487447 is about 164.9427043184.

The spelling of 4487447 in words is "four million, four hundred eighty-seven thousand, four hundred forty-seven".