85986079 has 2 divisors, whose sum is σ = 85986080. Its totient is φ = 85986078.

The previous prime is 85986071. The next prime is 85986083. The reversal of 85986079 is 97068958.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85986079 - 2³ = 85986071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85986071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42993039 + 42993040.

It is an arithmetic number, because the mean of its divisors is an integer number (42993040).

Almost surely, 2^85986079 is an apocalyptic number.

85986079 is a deficient number, since it is larger than the sum of its proper divisors (1).

85986079 is an equidigital number, since it uses as much as digits as its factorization.

85986079 is an odious number, because the sum of its binary digits is odd.

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

The square root of 85986079 is about 9272.8678951013. The cubic root of 85986079 is about 441.3766781516.

The spelling of 85986079 in words is "eighty-five million, nine hundred eighty-six thousand, seventy-nine".