81752683 has 2 divisors, whose sum is σ = 81752684. Its totient is φ = 81752682.

The previous prime is 81752651. The next prime is 81752689. The reversal of 81752683 is 38625718.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 81752683 - 2⁵ = 81752651 is a prime.

It is not a weakly prime, because it can be changed into another prime (81752689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40876341 + 40876342.

It is an arithmetic number, because the mean of its divisors is an integer number (40876342).

Almost surely, 2^81752683 is an apocalyptic number.

81752683 is a deficient number, since it is larger than the sum of its proper divisors (1).

81752683 is an equidigital number, since it uses as much as digits as its factorization.

81752683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 40.

The square root of 81752683 is about 9041.7190290342. The cubic root of 81752683 is about 434.0109346916.

The spelling of 81752683 in words is "eighty-one million, seven hundred fifty-two thousand, six hundred eighty-three".