27912739 has 2 divisors, whose sum is σ = 27912740. Its totient is φ = 27912738.

The previous prime is 27912707. The next prime is 27912743. The reversal of 27912739 is 93721972.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27912739 - 2⁵ = 27912707 is a prime.

It is not a weakly prime, because it can be changed into another prime (27912799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13956369 + 13956370.

It is an arithmetic number, because the mean of its divisors is an integer number (13956370).

Almost surely, 2^27912739 is an apocalyptic number.

27912739 is a deficient number, since it is larger than the sum of its proper divisors (1).

27912739 is an equidigital number, since it uses as much as digits as its factorization.

27912739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628, while the sum is 40.

The square root of 27912739 is about 5283.2507985141. The cubic root of 27912739 is about 303.3431215562.

The spelling of 27912739 in words is "twenty-seven million, nine hundred twelve thousand, seven hundred thirty-nine".