4220447 has 16 divisors (see below), whose sum is σ = 5356800. Its totient is φ = 3229440.

The previous prime is 4220441. The next prime is 4220449. The reversal of 4220447 is 7440224.

It is a cyclic number.

It is not a de Polignac number, because 4220447 - 2¹² = 4216351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220441) 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, 4079 + ... + 5007.

It is an arithmetic number, because the mean of its divisors is an integer number (334800).

Almost surely, 2^4220447 is an apocalyptic number.

4220447 is a deficient number, since it is larger than the sum of its proper divisors (1136353).

4220447 is a wasteful number, since it uses less digits than its factorization.

4220447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006.

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 4220447 is about 2054.3726536342. The cubic root of 4220447 is about 161.6042644816.

The spelling of 4220447 in words is "four million, two hundred twenty thousand, four hundred forty-seven".