4361909 has 2 divisors, whose sum is σ = 4361910. Its totient is φ = 4361908.

The previous prime is 4361897. The next prime is 4361941. The reversal of 4361909 is 9091634.

It is an a-pointer prime, because the next prime (4361941) can be obtained adding 4361909 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3591025 + 770884 = 1895^2 + 878^2 .

It is a cyclic number.

It is not a de Polignac number, because 4361909 - 2⁸ = 4361653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4361209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2180954 + 2180955.

It is an arithmetic number, because the mean of its divisors is an integer number (2180955).

Almost surely, 2^4361909 is an apocalyptic number.

It is an amenable number.

4361909 is a deficient number, since it is larger than the sum of its proper divisors (1).

4361909 is an equidigital number, since it uses as much as digits as its factorization.

4361909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 4361909 is about 2088.5183743506. The cubic root of 4361909 is about 163.3900228968.

The spelling of 4361909 in words is "four million, three hundred sixty-one thousand, nine hundred nine".