40727173 has 2 divisors, whose sum is σ = 40727174. Its totient is φ = 40727172.

The previous prime is 40727171. The next prime is 40727191. The reversal of 40727173 is 37172704.

40727173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20638849 + 20088324 = 4543^2 + 4482^2 .

It is a cyclic number.

It is not a de Polignac number, because 40727173 - 2¹ = 40727171 is a prime.

Together with 40727171, 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 (40727171) 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, 20363586 + 20363587.

It is an arithmetic number, because the mean of its divisors is an integer number (20363587).

Almost surely, 2^40727173 is an apocalyptic number.

It is an amenable number.

40727173 is a deficient number, since it is larger than the sum of its proper divisors (1).

40727173 is an equidigital number, since it uses as much as digits as its factorization.

40727173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 40727173 is about 6381.7844683129. The cubic root of 40727173 is about 344.0551701896.

Adding to 40727173 its reverse (37172704), we get a palindrome (77899877).

The spelling of 40727173 in words is "forty million, seven hundred twenty-seven thousand, one hundred seventy-three".