275666969 has 4 divisors (see below), whose sum is σ = 275701044. Its totient is φ = 275632896.

The previous prime is 275666957. The next prime is 275667001. The reversal of 275666969 is 969666572.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 208426969 + 67240000 = 14437^2 + 8200^2 .

It is a cyclic number.

It is not a de Polignac number, because 275666969 - 2¹² = 275662873 is a prime.

It is a super-2 number, since 2×275666969² = 151984555595293922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275666669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2789 + ... + 23645.

It is an arithmetic number, because the mean of its divisors is an integer number (68925261).

Almost surely, 2^275666969 is an apocalyptic number.

It is an amenable number.

275666969 is a deficient number, since it is larger than the sum of its proper divisors (34075).

275666969 is a wasteful number, since it uses less digits than its factorization.

275666969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34074.

The product of its digits is 7348320, while the sum is 56.

The square root of 275666969 is about 16603.2216452109. The cubic root of 275666969 is about 650.8210287767.

The spelling of 275666969 in words is "two hundred seventy-five million, six hundred sixty-six thousand, nine hundred sixty-nine".