276680389 has 8 divisors (see below), whose sum is σ = 293310720. Its totient is φ = 260089536.

The previous prime is 276680381. The next prime is 276680429. The reversal of 276680389 is 983086672.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 276680389 - 2³ = 276680381 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 (276680381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5242 + ... + 24100.

It is an arithmetic number, because the mean of its divisors is an integer number (36663840).

Almost surely, 2^276680389 is an apocalyptic number.

It is an amenable number.

276680389 is a deficient number, since it is larger than the sum of its proper divisors (16630331).

276680389 is a wasteful number, since it uses less digits than its factorization.

276680389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19739.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 276680389 is about 16633.7124238698. The cubic root of 276680389 is about 651.6175798553.

The spelling of 276680389 in words is "two hundred seventy-six million, six hundred eighty thousand, three hundred eighty-nine".