4388609 has 2 divisors, whose sum is σ = 4388610. Its totient is φ = 4388608.

The previous prime is 4388557. The next prime is 4388611. The reversal of 4388609 is 9068834.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2900209 + 1488400 = 1703^2 + 1220^2 .

It is a cyclic number.

It is not a de Polignac number, because 4388609 - 2¹⁶ = 4323073 is a prime.

Together with 4388611, 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 (4388689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2194304 + 2194305.

It is an arithmetic number, because the mean of its divisors is an integer number (2194305).

Almost surely, 2^4388609 is an apocalyptic number.

It is an amenable number.

4388609 is a deficient number, since it is larger than the sum of its proper divisors (1).

4388609 is an equidigital number, since it uses as much as digits as its factorization.

4388609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 4388609 is about 2094.9007136378. The cubic root of 4388609 is about 163.7227245132.

The spelling of 4388609 in words is "four million, three hundred eighty-eight thousand, six hundred nine".