27428741 has 2 divisors, whose sum is σ = 27428742. Its totient is φ = 27428740.

The previous prime is 27428699. The next prime is 27428743. The reversal of 27428741 is 14782472.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20511841 + 6916900 = 4529^2 + 2630^2 .

It is a cyclic number.

It is not a de Polignac number, because 27428741 - 2¹⁰ = 27427717 is a prime.

Together with 27428743, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27428743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13714370 + 13714371.

It is an arithmetic number, because the mean of its divisors is an integer number (13714371).

Almost surely, 2^27428741 is an apocalyptic number.

It is an amenable number.

27428741 is a deficient number, since it is larger than the sum of its proper divisors (1).

27428741 is an equidigital number, since it uses as much as digits as its factorization.

27428741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25088, while the sum is 35.

The square root of 27428741 is about 5237.2455546785. The cubic root of 27428741 is about 301.5795979334.

The spelling of 27428741 in words is "twenty-seven million, four hundred twenty-eight thousand, seven hundred forty-one".