27974743 has 2 divisors, whose sum is σ = 27974744. Its totient is φ = 27974742.

The previous prime is 27974719. The next prime is 27974753. The reversal of 27974743 is 34747972.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27974743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27974743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27974753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13987371 + 13987372.

It is an arithmetic number, because the mean of its divisors is an integer number (13987372).

Almost surely, 2^27974743 is an apocalyptic number.

27974743 is a deficient number, since it is larger than the sum of its proper divisors (1).

27974743 is an equidigital number, since it uses as much as digits as its factorization.

27974743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352, while the sum is 43.

The square root of 27974743 is about 5289.1155215215. The cubic root of 27974743 is about 303.5675659973.

The spelling of 27974743 in words is "twenty-seven million, nine hundred seventy-four thousand, seven hundred forty-three".