27963973 has 2 divisors, whose sum is σ = 27963974. Its totient is φ = 27963972.

The previous prime is 27963967. The next prime is 27964039. The reversal of 27963973 is 37936972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27531009 + 432964 = 5247^2 + 658^2 .

It is a cyclic number.

It is not a de Polignac number, because 27963973 - 2⁵ = 27963941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27963473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13981986 + 13981987.

It is an arithmetic number, because the mean of its divisors is an integer number (13981987).

Almost surely, 2^27963973 is an apocalyptic number.

It is an amenable number.

27963973 is a deficient number, since it is larger than the sum of its proper divisors (1).

27963973 is an equidigital number, since it uses as much as digits as its factorization.

27963973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 428652, while the sum is 46.

The square root of 27963973 is about 5288.0972948689. The cubic root of 27963973 is about 303.5286041578.

The spelling of 27963973 in words is "twenty-seven million, nine hundred sixty-three thousand, nine hundred seventy-three".