4409939 has 2 divisors, whose sum is σ = 4409940. Its totient is φ = 4409938.

The previous prime is 4409927. The next prime is 4409941. The reversal of 4409939 is 9399044.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4409939 - 2²⁰ = 3361363 is a prime.

Together with 4409941, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4403939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2204969 + 2204970.

It is an arithmetic number, because the mean of its divisors is an integer number (2204970).

Almost surely, 2^4409939 is an apocalyptic number.

4409939 is a deficient number, since it is larger than the sum of its proper divisors (1).

4409939 is an equidigital number, since it uses as much as digits as its factorization.

4409939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 4409939 is about 2099.9854761403. The cubic root of 4409939 is about 163.9875436702.

The spelling of 4409939 in words is "four million, four hundred nine thousand, nine hundred thirty-nine".