276728684 has 6 divisors (see below), whose sum is σ = 484275204. Its totient is φ = 138364340.

The previous prime is 276728659. The next prime is 276728719. The reversal of 276728684 is 486827672.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34591082 + ... + 34591089.

It is an arithmetic number, because the mean of its divisors is an integer number (80712534).

Almost surely, 2^276728684 is an apocalyptic number.

It is an amenable number.

276728684 is a deficient number, since it is larger than the sum of its proper divisors (207546520).

276728684 is a wasteful number, since it uses less digits than its factorization.

276728684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69182175 (or 69182173 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 50.

The square root of 276728684 is about 16635.1640809461. The cubic root of 276728684 is about 651.6554912763.

The spelling of 276728684 in words is "two hundred seventy-six million, seven hundred twenty-eight thousand, six hundred eighty-four".