4664809 has 2 divisors, whose sum is σ = 4664810. Its totient is φ = 4664808.

The previous prime is 4664801. The next prime is 4664813. The reversal of 4664809 is 9084664.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3515625 + 1149184 = 1875^2 + 1072^2 .

It is a cyclic number.

It is not a de Polignac number, because 4664809 - 2³ = 4664801 is a prime.

It is not a weakly prime, because it can be changed into another prime (4664801) 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, 2332404 + 2332405.

It is an arithmetic number, because the mean of its divisors is an integer number (2332405).

Almost surely, 2^4664809 is an apocalyptic number.

It is an amenable number.

4664809 is a deficient number, since it is larger than the sum of its proper divisors (1).

4664809 is an equidigital number, since it uses as much as digits as its factorization.

4664809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 4664809 is about 2159.8168903868. The cubic root of 4664809 is about 167.0877543262.

It can be divided in two parts, 466480 and 9, that added together give a square (466489 = 683²).

The spelling of 4664809 in words is "four million, six hundred sixty-four thousand, eight hundred nine".