4221007 has 6 divisors (see below), whose sum is σ = 4910208. Its totient is φ = 3617964.

The previous prime is 4220987. The next prime is 4221011. The reversal of 4221007 is 7001224.

It is a de Polignac number, because none of the positive numbers 2^k-4221007 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 (4221047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43023 + ... + 43120.

It is an arithmetic number, because the mean of its divisors is an integer number (818368).

Almost surely, 2^4221007 is an apocalyptic number.

4221007 is a deficient number, since it is larger than the sum of its proper divisors (689201).

4221007 is an equidigital number, since it uses as much as digits as its factorization.

4221007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86157 (or 86150 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 4221007 is about 2054.5089437625. The cubic root of 4221007 is about 161.6114117803.

The spelling of 4221007 in words is "four million, two hundred twenty-one thousand, seven".