276680989 has 16 divisors (see below), whose sum is σ = 306315520. Its totient is φ = 248339520.

The previous prime is 276680981. The next prime is 276681011. The reversal of 276680989 is 989086672.

It is not a de Polignac number, because 276680989 - 2³ = 276680981 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 (276680981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66799 + ... + 70819.

It is an arithmetic number, because the mean of its divisors is an integer number (19144720).

Almost surely, 2^276680989 is an apocalyptic number.

It is an amenable number.

276680989 is a deficient number, since it is larger than the sum of its proper divisors (29634531).

276680989 is a wasteful number, since it uses less digits than its factorization.

276680989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The square root of 276680989 is about 16633.7304595211. The cubic root of 276680989 is about 651.6180508804.

The spelling of 276680989 in words is "two hundred seventy-six million, six hundred eighty thousand, nine hundred eighty-nine".