4813909 has 2 divisors, whose sum is σ = 4813910. Its totient is φ = 4813908.

The previous prime is 4813849. The next prime is 4813943. The reversal of 4813909 is 9093184.

It is an a-pointer prime, because the next prime (4813943) can be obtained adding 4813909 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4743684 + 70225 = 2178^2 + 265^2 .

It is a cyclic number.

It is not a de Polignac number, because 4813909 - 2¹¹ = 4811861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4813309) 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, 2406954 + 2406955.

It is an arithmetic number, because the mean of its divisors is an integer number (2406955).

Almost surely, 2^4813909 is an apocalyptic number.

It is an amenable number.

4813909 is a deficient number, since it is larger than the sum of its proper divisors (1).

4813909 is an equidigital number, since it uses as much as digits as its factorization.

4813909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 4813909 is about 2194.0622142501. The cubic root of 4813909 is about 168.8493107249.

Subtracting 4813909 from its reverse (9093184), we obtain a triangular number (4279275 = T₂₉₂₅).

The spelling of 4813909 in words is "four million, eight hundred thirteen thousand, nine hundred nine".