668127 has 12 divisors (see below), whose sum is σ = 933464. Its totient is φ = 425040.

The previous prime is 668111. The next prime is 668141. The reversal of 668127 is 721866.

It is a happy number.

It is not a de Polignac number, because 668127 - 2⁴ = 668111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 668094 and 668103.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 668127.

It is not an unprimeable number, because it can be changed into a prime (668527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1377 + ... + 1797.

2⁶⁶⁸¹²⁷ is an apocalyptic number.

668127 is a deficient number, since it is larger than the sum of its proper divisors (265337).

668127 is a wasteful number, since it uses less digits than its factorization.

668127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470 (or 447 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 668127 is about 817.3903596202. The cubic root of 668127 is about 87.4217858895.

The spelling of 668127 in words is "six hundred sixty-eight thousand, one hundred twenty-seven".