85567679 has 2 divisors, whose sum is σ = 85567680. Its totient is φ = 85567678.

The previous prime is 85567673. The next prime is 85567693. The reversal of 85567679 is 97676558.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85567679 - 2¹⁶ = 85502143 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85567679.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 42783839 + 42783840.

It is an arithmetic number, because the mean of its divisors is an integer number (42783840).

Almost surely, 2^85567679 is an apocalyptic number.

85567679 is a deficient number, since it is larger than the sum of its proper divisors (1).

85567679 is an equidigital number, since it uses as much as digits as its factorization.

85567679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3175200, while the sum is 53.

The square root of 85567679 is about 9250.2799417099. The cubic root of 85567679 is about 440.6596149994.

The spelling of 85567679 in words is "eighty-five million, five hundred sixty-seven thousand, six hundred seventy-nine".