85567693 has 2 divisors, whose sum is σ = 85567694. Its totient is φ = 85567692.

The previous prime is 85567679. The next prime is 85567711. The reversal of 85567693 is 39676558.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68112009 + 17455684 = 8253^2 + 4178^2 .

It is a cyclic number.

It is not a de Polignac number, because 85567693 - 2¹⁷ = 85436621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85567673) 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, 42783846 + 42783847.

It is an arithmetic number, because the mean of its divisors is an integer number (42783847).

Almost surely, 2^85567693 is an apocalyptic number.

It is an amenable number.

85567693 is a deficient number, since it is larger than the sum of its proper divisors (1).

85567693 is an equidigital number, since it uses as much as digits as its factorization.

85567693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 49.

The square root of 85567693 is about 9250.2806984437. The cubic root of 85567693 is about 440.6596390319.

The spelling of 85567693 in words is "eighty-five million, five hundred sixty-seven thousand, six hundred ninety-three".