4646809 has 2 divisors, whose sum is σ = 4646810. Its totient is φ = 4646808.

The previous prime is 4646801. The next prime is 4646819. The reversal of 4646809 is 9086464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2471184 + 2175625 = 1572^2 + 1475^2 .

It is a cyclic number.

It is not a de Polignac number, because 4646809 - 2³ = 4646801 is a prime.

4646809 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4646801) 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, 2323404 + 2323405.

It is an arithmetic number, because the mean of its divisors is an integer number (2323405).

Almost surely, 2^4646809 is an apocalyptic number.

It is an amenable number.

4646809 is a deficient number, since it is larger than the sum of its proper divisors (1).

4646809 is an equidigital number, since it uses as much as digits as its factorization.

4646809 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 4646809 is about 2155.6458428972. The cubic root of 4646809 is about 166.8725646425.

The spelling of 4646809 in words is "four million, six hundred forty-six thousand, eight hundred nine".