275666814 has 20 divisors (see below), whose sum is σ = 617698224. Its totient is φ = 91888884.

The previous prime is 275666813. The next prime is 275666819. The reversal of 275666814 is 418666572.

It is a self number, because there is not a number n which added to its sum of digits gives 275666814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275666813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 850662 + ... + 850985.

Almost surely, 2^275666814 is an apocalyptic number.

275666814 is an abundant number, since it is smaller than the sum of its proper divisors (342031410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

275666814 is a wasteful number, since it uses less digits than its factorization.

275666814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701661 (or 1701652 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 275666814 is about 16603.2169774415. The cubic root of 275666814 is about 650.8209067970.

The spelling of 275666814 in words is "two hundred seventy-five million, six hundred sixty-six thousand, eight hundred fourteen".