85968079 has 2 divisors, whose sum is σ = 85968080. Its totient is φ = 85968078.

The previous prime is 85968073. The next prime is 85968097. The reversal of 85968079 is 97086958.

Together with next prime (85968097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85968079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85968073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42984039 + 42984040.

It is an arithmetic number, because the mean of its divisors is an integer number (42984040).

Almost surely, 2^85968079 is an apocalyptic number.

85968079 is a deficient number, since it is larger than the sum of its proper divisors (1).

85968079 is an equidigital number, since it uses as much as digits as its factorization.

85968079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The square root of 85968079 is about 9271.8972707855. The cubic root of 85968079 is about 441.3458772951.

The spelling of 85968079 in words is "eighty-five million, nine hundred sixty-eight thousand, seventy-nine".