4905666 has 12 divisors (see below), whose sum is σ = 10628982. Its totient is φ = 1635216.

The previous prime is 4905661. The next prime is 4905701. The reversal of 4905666 is 6665094.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3515625 + 1390041 = 1875^2 + 1179^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4905666.

It is not an unprimeable number, because it can be changed into a prime (4905661) 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 5 ways as a sum of consecutive naturals, for example, 136251 + ... + 136286.

Almost surely, 2^4905666 is an apocalyptic number.

4905666 is an abundant number, since it is smaller than the sum of its proper divisors (5723316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4905666 is a wasteful number, since it uses less digits than its factorization.

4905666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272545 (or 272542 counting only the distinct ones).

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

The square root of 4905666 is about 2214.8738113039. The cubic root of 4905666 is about 169.9153673314.

The spelling of 4905666 in words is "four million, nine hundred five thousand, six hundred sixty-six".