27021983 has 2 divisors, whose sum is σ = 27021984. Its totient is φ = 27021982.

The previous prime is 27021923. The next prime is 27021989. The reversal of 27021983 is 38912072.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27021983 - 2⁶ = 27021919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27021989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13510991 + 13510992.

It is an arithmetic number, because the mean of its divisors is an integer number (13510992).

Almost surely, 2^27021983 is an apocalyptic number.

27021983 is a deficient number, since it is larger than the sum of its proper divisors (1).

27021983 is an equidigital number, since it uses as much as digits as its factorization.

27021983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 27021983 is about 5198.2673074785. The cubic root of 27021983 is about 300.0813964319.

The spelling of 27021983 in words is "twenty-seven million, twenty-one thousand, nine hundred eighty-three".