85487 has 2 divisors, whose sum is σ = 85488. Its totient is φ = 85486.

The previous prime is 85469. The next prime is 85513. The reversal of 85487 is 78458.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85487 - 2¹⁰ = 84463 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42743 + 42744.

It is an arithmetic number, because the mean of its divisors is an integer number (42744).

2⁸⁵⁴⁸⁷ is an apocalyptic number.

85487 is a deficient number, since it is larger than the sum of its proper divisors (1).

85487 is an equidigital number, since it uses as much as digits as its factorization.

85487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8960, while the sum is 32.

The square root of 85487 is about 292.3815999683. The cubic root of 85487 is about 44.0521076878.

The spelling of 85487 in words is "eighty-five thousand, four hundred eighty-seven".