660754 has 8 divisors (see below), whose sum is σ = 1006128. Its totient is φ = 325380.

The previous prime is 660733. The next prime is 660757. The reversal of 660754 is 457066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (660757) by changing a digit.

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, 2332 + ... + 2599.

It is an arithmetic number, because the mean of its divisors is an integer number (125766).

2⁶⁶⁰⁷⁵⁴ is an apocalyptic number.

660754 is a deficient number, since it is larger than the sum of its proper divisors (345374).

660754 is a wasteful number, since it uses less digits than its factorization.

660754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 660754 is about 812.8677629233. The cubic root of 660754 is about 87.0990196834.

The spelling of 660754 in words is "six hundred sixty thousand, seven hundred fifty-four".