4434721 has 2 divisors, whose sum is σ = 4434722. Its totient is φ = 4434720.

The previous prime is 4434697. The next prime is 4434737. The reversal of 4434721 is 1274344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2907025 + 1527696 = 1705^2 + 1236^2 .

It is a cyclic number.

It is not a de Polignac number, because 4434721 - 2¹³ = 4426529 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4434421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2217360 + 2217361.

It is an arithmetic number, because the mean of its divisors is an integer number (2217361).

Almost surely, 2^4434721 is an apocalyptic number.

It is an amenable number.

4434721 is a deficient number, since it is larger than the sum of its proper divisors (1).

4434721 is an equidigital number, since it uses as much as digits as its factorization.

4434721 is an evil number, because the sum of its binary digits is even.

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

The square root of 4434721 is about 2105.8777267448. The cubic root of 4434721 is about 164.2941503635.

The spelling of 4434721 in words is "four million, four hundred thirty-four thousand, seven hundred twenty-one".