660748 has 12 divisors (see below), whose sum is σ = 1261512. Its totient is φ = 300320.

The previous prime is 660733. The next prime is 660757. The reversal of 660748 is 847066.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7465 + ... + 7552.

It is an arithmetic number, because the mean of its divisors is an integer number (105126).

2⁶⁶⁰⁷⁴⁸ is an apocalyptic number.

It is an amenable number.

660748 is a deficient number, since it is larger than the sum of its proper divisors (600764).

660748 is a wasteful number, since it uses less digits than its factorization.

660748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15032 (or 15030 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 660748 is about 812.8640722778. The cubic root of 660748 is about 87.0987560474.

The spelling of 660748 in words is "six hundred sixty thousand, seven hundred forty-eight".