275979983 has 4 divisors (see below), whose sum is σ = 276044328. Its totient is φ = 275915640.

The previous prime is 275979973. The next prime is 275980009. The reversal of 275979983 is 389979572.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 275979983 - 2²⁰ = 274931407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275979953) 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, 25241 + ... + 34482.

It is an arithmetic number, because the mean of its divisors is an integer number (69011082).

Almost surely, 2^275979983 is an apocalyptic number.

275979983 is a deficient number, since it is larger than the sum of its proper divisors (64345).

275979983 is an equidigital number, since it uses as much as digits as its factorization.

275979983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64344.

The product of its digits is 8573040, while the sum is 59.

The square root of 275979983 is about 16612.6452740074. The cubic root of 275979983 is about 651.0672667618.

The spelling of 275979983 in words is "two hundred seventy-five million, nine hundred seventy-nine thousand, nine hundred eighty-three".