27980063 has 2 divisors, whose sum is σ = 27980064. Its totient is φ = 27980062.

The previous prime is 27980059. The next prime is 27980083. The reversal of 27980063 is 36008972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27980063 - 2² = 27980059 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27980023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13990031 + 13990032.

It is an arithmetic number, because the mean of its divisors is an integer number (13990032).

Almost surely, 2^27980063 is an apocalyptic number.

27980063 is a deficient number, since it is larger than the sum of its proper divisors (1).

27980063 is an equidigital number, since it uses as much as digits as its factorization.

27980063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 27980063 is about 5289.6184172396. The cubic root of 27980063 is about 303.5868080816.

The spelling of 27980063 in words is "twenty-seven million, nine hundred eighty thousand, sixty-three".