85755727 has 2 divisors, whose sum is σ = 85755728. Its totient is φ = 85755726.

The previous prime is 85755689. The next prime is 85755731. The reversal of 85755727 is 72755758.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85755727 - 2¹⁹ = 85231439 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85755737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42877863 + 42877864.

It is an arithmetic number, because the mean of its divisors is an integer number (42877864).

Almost surely, 2^85755727 is an apocalyptic number.

85755727 is a deficient number, since it is larger than the sum of its proper divisors (1).

85755727 is an equidigital number, since it uses as much as digits as its factorization.

85755727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 686000, while the sum is 46.

The square root of 85755727 is about 9260.4388124970. The cubic root of 85755727 is about 440.9821843438.

The spelling of 85755727 in words is "eighty-five million, seven hundred fifty-five thousand, seven hundred twenty-seven".