275668 has 6 divisors (see below), whose sum is σ = 482426. Its totient is φ = 137832.

The previous prime is 275657. The next prime is 275669. The reversal of 275668 is 866572.

It can be written as a sum of positive squares in only one way, i.e., 219024 + 56644 = 468^2 + 238^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275669) by changing a digit.

275668 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34455 + ... + 34462.

2²⁷⁵⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

275668 is a deficient number, since it is larger than the sum of its proper divisors (206758).

275668 is a wasteful number, since it uses less digits than its factorization.

275668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68921 (or 68919 counting only the distinct ones).

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

The square root of 275668 is about 525.0409507838. The cubic root of 275668 is about 65.0821840137.

The spelling of 275668 in words is "two hundred seventy-five thousand, six hundred sixty-eight".