27680963 has 4 divisors (see below), whose sum is σ = 27694680. Its totient is φ = 27667248.

The previous prime is 27680957. The next prime is 27680977. The reversal of 27680963 is 36908672.

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

It is a cyclic number.

It is not a de Polignac number, because 27680963 - 2⁶ = 27680899 is a prime.

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 27680963.

It is not an unprimeable number, because it can be changed into a prime (27680903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3170 + ... + 8087.

It is an arithmetic number, because the mean of its divisors is an integer number (6923670).

Almost surely, 2^27680963 is an apocalyptic number.

27680963 is a deficient number, since it is larger than the sum of its proper divisors (13717).

27680963 is a wasteful number, since it uses less digits than its factorization.

27680963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13716.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 27680963 is about 5261.2700938081. The cubic root of 27680963 is about 302.5011743232.

The spelling of 27680963 in words is "twenty-seven million, six hundred eighty thousand, nine hundred sixty-three".