27992983 has 2 divisors, whose sum is σ = 27992984. Its totient is φ = 27992982.

The previous prime is 27992981. The next prime is 27992989. The reversal of 27992983 is 38929972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27992983 - 2¹ = 27992981 is a prime.

Together with 27992981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27992981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13996491 + 13996492.

It is an arithmetic number, because the mean of its divisors is an integer number (13996492).

Almost surely, 2^27992983 is an apocalyptic number.

27992983 is a deficient number, since it is larger than the sum of its proper divisors (1).

27992983 is an equidigital number, since it uses as much as digits as its factorization.

27992983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 49.

The square root of 27992983 is about 5290.8395364063. The cubic root of 27992983 is about 303.6335287054.

The spelling of 27992983 in words is "twenty-seven million, nine hundred ninety-two thousand, nine hundred eighty-three".