4656609 has 12 divisors (see below), whose sum is σ = 6975696. Its totient is φ = 3104244.

The previous prime is 4656607. The next prime is 4656629. The reversal of 4656609 is 9066564.

It is a happy number.

4656609 is a `hidden beast` number, since 46 + 5 + 6 + 609 = 666.

It is not a de Polignac number, because 4656609 - 2¹ = 4656607 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4656607) 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 in 11 ways as a sum of consecutive naturals, for example, 9339 + ... + 9824.

It is an arithmetic number, because the mean of its divisors is an integer number (581308).

Almost surely, 2^4656609 is an apocalyptic number.

It is an amenable number.

4656609 is a deficient number, since it is larger than the sum of its proper divisors (2319087).

4656609 is an equidigital number, since it uses as much as digits as its factorization.

4656609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19178 (or 19166 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 4656609 is about 2157.9177463472. The cubic root of 4656609 is about 166.9897922454.

The spelling of 4656609 in words is "four million, six hundred fifty-six thousand, six hundred nine".