276689956 has 9 divisors (see below), whose sum is σ = 484265649. Its totient is φ = 138328344.

The previous prime is 276689953. The next prime is 276689971. The reversal of 276689956 is 659986672.

The square root of 276689956 is 16634.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 271920100 + 4769856 = 16490^2 + 2184^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 276689956.

It is not an unprimeable number, because it can be changed into a prime (276689953) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 29110 + ... + 37426.

Almost surely, 2^276689956 is an apocalyptic number.

276689956 is the 16634-th square number.

It is an amenable number.

276689956 is a deficient number, since it is larger than the sum of its proper divisors (207575693).

276689956 is an frugal number, since it uses more digits than its factorization.

276689956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16638 (or 8319 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 58.

The cubic root of 276689956 is about 651.6250902702.

The spelling of 276689956 in words is "two hundred seventy-six million, six hundred eighty-nine thousand, nine hundred fifty-six".