4344721 has 2 divisors, whose sum is σ = 4344722. Its totient is φ = 4344720.

The previous prime is 4344689. The next prime is 4344733. The reversal of 4344721 is 1274434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3940225 + 404496 = 1985^2 + 636^2 .

It is a cyclic number.

It is not a de Polignac number, because 4344721 - 2⁵ = 4344689 is a prime.

It is not a weakly prime, because it can be changed into another prime (4344121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2172360 + 2172361.

It is an arithmetic number, because the mean of its divisors is an integer number (2172361).

Almost surely, 2^4344721 is an apocalyptic number.

It is an amenable number.

4344721 is a deficient number, since it is larger than the sum of its proper divisors (1).

4344721 is an equidigital number, since it uses as much as digits as its factorization.

4344721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 25.

The square root of 4344721 is about 2084.3994338898. The cubic root of 4344721 is about 163.1751288712.

The spelling of 4344721 in words is "four million, three hundred forty-four thousand, seven hundred twenty-one".