275691 has 8 divisors (see below), whose sum is σ = 395920. Its totient is φ = 169632.

The previous prime is 275677. The next prime is 275699. The reversal of 275691 is 196572.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 275691 - 2¹⁰ = 274667 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 275691.

It is not an unprimeable number, because it can be changed into a prime (275699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3496 + ... + 3573.

It is an arithmetic number, because the mean of its divisors is an integer number (49490).

2²⁷⁵⁶⁹¹ is an apocalyptic number.

275691 is a deficient number, since it is larger than the sum of its proper divisors (120229).

275691 is a wasteful number, since it uses less digits than its factorization.

275691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7085.

The product of its digits is 3780, while the sum is 30.

The square root of 275691 is about 525.0628533804. The cubic root of 275691 is about 65.0839939791.

The spelling of 275691 in words is "two hundred seventy-five thousand, six hundred ninety-one".