4447121 has 16 divisors (see below), whose sum is σ = 5539200.
Its totient is φ = 3483648.
The previous prime is 4447117. The next prime is 4447151. The reversal of 4447121 is 1217444.
It is a happy number.
It is not a de Polignac number, because 4447121 - 22 = 4447117 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (4447151) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3281 + ... + 4433.
It is an arithmetic number, because the mean of its divisors is an integer number (346200).
Almost surely, 24447121 is an apocalyptic number.
It is an amenable number.
4447121 is a deficient number, since it is larger than the sum of its proper divisors (1092079).
4447121 is a wasteful number, since it uses less digits than its factorization.
4447121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1208.
The product of its digits is 896, while the sum is 23.
The square root of 4447121 is about 2108.8198121224.
The cubic root of 4447121 is about 164.4471364336.
The spelling of 4447121 in words is "four million, four hundred forty-seven thousand, one hundred twenty-one".