4897909 has 2 divisors, whose sum is σ = 4897910. Its totient is φ = 4897908.

The previous prime is 4897903. The next prime is 4897927. The reversal of 4897909 is 9097984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2656900 + 2241009 = 1630^2 + 1497^2 .

It is a cyclic number.

It is not a de Polignac number, because 4897909 - 2⁹ = 4897397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4897903) 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, 2448954 + 2448955.

It is an arithmetic number, because the mean of its divisors is an integer number (2448955).

Almost surely, 2^4897909 is an apocalyptic number.

It is an amenable number.

4897909 is a deficient number, since it is larger than the sum of its proper divisors (1).

4897909 is an equidigital number, since it uses as much as digits as its factorization.

4897909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 4897909 is about 2213.1220029632. The cubic root of 4897909 is about 169.8257615014.

The spelling of 4897909 in words is "four million, eight hundred ninety-seven thousand, nine hundred nine".