4477221 has 16 divisors (see below), whose sum is σ = 7580800. Its totient is φ = 2558304.

The previous prime is 4477199. The next prime is 4477261. The reversal of 4477221 is 1227744.

It is a happy number.

It is not a de Polignac number, because 4477221 - 2¹¹ = 4475173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4477261) 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, 11656 + ... + 12033.

It is an arithmetic number, because the mean of its divisors is an integer number (473800).

Almost surely, 2^4477221 is an apocalyptic number.

It is an amenable number.

4477221 is a deficient number, since it is larger than the sum of its proper divisors (3103579).

4477221 is a wasteful number, since it uses less digits than its factorization.

4477221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23705 (or 23699 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 4477221 is about 2115.9444699708. The cubic root of 4477221 is about 164.8173184780.

The spelling of 4477221 in words is "four million, four hundred seventy-seven thousand, two hundred twenty-one".