85522687 has 2 divisors, whose sum is σ = 85522688. Its totient is φ = 85522686.

The previous prime is 85522673. The next prime is 85522691. The reversal of 85522687 is 78622558.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85522687 - 2¹⁹ = 84998399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85522607) 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, 42761343 + 42761344.

It is an arithmetic number, because the mean of its divisors is an integer number (42761344).

Almost surely, 2^85522687 is an apocalyptic number.

85522687 is a deficient number, since it is larger than the sum of its proper divisors (1).

85522687 is an equidigital number, since it uses as much as digits as its factorization.

85522687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 268800, while the sum is 43.

The square root of 85522687 is about 9247.8476955452. The cubic root of 85522687 is about 440.5823676339.

The spelling of 85522687 in words is "eighty-five million, five hundred twenty-two thousand, six hundred eighty-seven".