276288086 has 4 divisors (see below), whose sum is σ = 414432132. Its totient is φ = 138144042.

The previous prime is 276288079. The next prime is 276288143. The reversal of 276288086 is 680882672.

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

It is a self number, because there is not a number n which added to its sum of digits gives 276288086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69072020 + ... + 69072023.

It is an arithmetic number, because the mean of its divisors is an integer number (103608033).

Almost surely, 2^276288086 is an apocalyptic number.

276288086 is a deficient number, since it is larger than the sum of its proper divisors (138144046).

276288086 is a wasteful number, since it uses less digits than its factorization.

276288086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138144045.

The product of its (nonzero) digits is 516096, while the sum is 47.

The square root of 276288086 is about 16621.9158342232. The cubic root of 276288086 is about 651.3094596605.

The spelling of 276288086 in words is "two hundred seventy-six million, two hundred eighty-eight thousand, eighty-six".