660908 has 12 divisors (see below), whose sum is σ = 1166592. Its totient is φ = 327600.

The previous prime is 660901. The next prime is 660917. The reversal of 660908 is 809066.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 660908.

It is not an unprimeable number, because it can be changed into a prime (660901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143 + ... + 1158.

It is an arithmetic number, because the mean of its divisors is an integer number (97216).

2⁶⁶⁰⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

660908 is a deficient number, since it is larger than the sum of its proper divisors (505684).

660908 is a wasteful number, since it uses less digits than its factorization.

660908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432 (or 1430 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 660908 is about 812.9624837592. The cubic root of 660908 is about 87.1057857956.

The spelling of 660908 in words is "six hundred sixty thousand, nine hundred eight".