276630986 has 4 divisors (see below), whose sum is σ = 414946482. Its totient is φ = 138315492.

The previous prime is 276630961. The next prime is 276631039. The reversal of 276630986 is 689036672.

276630986 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 224430361 + 52200625 = 14981^2 + 7225^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 276630986.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69157745 + ... + 69157748.

Almost surely, 2^276630986 is an apocalyptic number.

276630986 is a deficient number, since it is larger than the sum of its proper divisors (138315496).

276630986 is a wasteful number, since it uses less digits than its factorization.

276630986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138315495.

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 276630986 is about 16632.2273312987. The cubic root of 276630986 is about 651.5787940928.

The spelling of 276630986 in words is "two hundred seventy-six million, six hundred thirty thousand, nine hundred eighty-six".