660927 has 8 divisors (see below), whose sum is σ = 887680. Its totient is φ = 437400.

The previous prime is 660923. The next prime is 660941. The reversal of 660927 is 729066.

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

It is not a de Polignac number, because 660927 - 2² = 660923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 660894 and 660903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277 + ... + 1182.

It is an arithmetic number, because the mean of its divisors is an integer number (110960).

2⁶⁶⁰⁹²⁷ is an apocalyptic number.

660927 is a deficient number, since it is larger than the sum of its proper divisors (226753).

660927 is a wasteful number, since it uses less digits than its factorization.

660927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 660927 is about 812.9741693314. The cubic root of 660927 is about 87.1066205028.

The spelling of 660927 in words is "six hundred sixty thousand, nine hundred twenty-seven".