4406939 has 2 divisors, whose sum is σ = 4406940. Its totient is φ = 4406938.

The previous prime is 4406911. The next prime is 4406947. The reversal of 4406939 is 9396044.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4406939 is a prime.

It is a super-2 number, since 2×4406939² = 38842222699442, which contains 22 as substring.

It is a Sophie Germain prime.

It is equal to p₃₀₉₇₈₈ and since 4406939 and 309788 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 4406899 and 4406908.

It is not a weakly prime, because it can be changed into another prime (4406999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2203469 + 2203470.

It is an arithmetic number, because the mean of its divisors is an integer number (2203470).

Almost surely, 2^4406939 is an apocalyptic number.

4406939 is a deficient number, since it is larger than the sum of its proper divisors (1).

4406939 is an equidigital number, since it uses as much as digits as its factorization.

4406939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 4406939 is about 2099.2710639648. The cubic root of 4406939 is about 163.9503493363.

The spelling of 4406939 in words is "four million, four hundred six thousand, nine hundred thirty-nine".