85886987 has 2 divisors, whose sum is σ = 85886988. Its totient is φ = 85886986.

The previous prime is 85886981. The next prime is 85886993. The reversal of 85886987 is 78968858.

It is a balanced prime because it is at equal distance from previous prime (85886981) and next prime (85886993).

It is a cyclic number.

It is not a de Polignac number, because 85886987 - 2⁴ = 85886971 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85886981) 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, 42943493 + 42943494.

It is an arithmetic number, because the mean of its divisors is an integer number (42943494).

Almost surely, 2^85886987 is an apocalyptic number.

85886987 is a deficient number, since it is larger than the sum of its proper divisors (1).

85886987 is an equidigital number, since it uses as much as digits as its factorization.

85886987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7741440, while the sum is 59.

The square root of 85886987 is about 9267.5232397874. The cubic root of 85886987 is about 441.2070626738.

The spelling of 85886987 in words is "eighty-five million, eight hundred eighty-six thousand, nine hundred eighty-seven".