668275 has 6 divisors (see below), whose sum is σ = 828692. Its totient is φ = 534600.

The previous prime is 668273. The next prime is 668303. The reversal of 668275 is 572866.

668275 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 668275 - 2¹ = 668273 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 668275.

It is not an unprimeable number, because it can be changed into a prime (668273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13341 + ... + 13390.

2⁶⁶⁸²⁷⁵ is an apocalyptic number.

668275 is a deficient number, since it is larger than the sum of its proper divisors (160417).

668275 is a wasteful number, since it uses less digits than its factorization.

668275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26741 (or 26736 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 668275 is about 817.4808866267. The cubic root of 668275 is about 87.4282404852.

The spelling of 668275 in words is "six hundred sixty-eight thousand, two hundred seventy-five".