4656809 has 2 divisors, whose sum is σ = 4656810. Its totient is φ = 4656808.

The previous prime is 4656797. The next prime is 4656823. The reversal of 4656809 is 9086564.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4494400 + 162409 = 2120^2 + 403^2 .

It is a cyclic number.

It is not a de Polignac number, because 4656809 - 2¹⁶ = 4591273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4656859) 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, 2328404 + 2328405.

It is an arithmetic number, because the mean of its divisors is an integer number (2328405).

Almost surely, 2^4656809 is an apocalyptic number.

It is an amenable number.

4656809 is a deficient number, since it is larger than the sum of its proper divisors (1).

4656809 is an equidigital number, since it uses as much as digits as its factorization.

4656809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 4656809 is about 2157.9640868189. The cubic root of 4656809 is about 166.9921829322.

The spelling of 4656809 in words is "four million, six hundred fifty-six thousand, eight hundred nine".