85888489 has 2 divisors, whose sum is σ = 85888490. Its totient is φ = 85888488.

The previous prime is 85888441. The next prime is 85888499. The reversal of 85888489 is 98488858.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65934400 + 19954089 = 8120^2 + 4467^2 .

It is a cyclic number.

It is not a de Polignac number, because 85888489 - 2¹³ = 85880297 is a prime.

It is not a weakly prime, because it can be changed into another prime (85888499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42944244 + 42944245.

It is an arithmetic number, because the mean of its divisors is an integer number (42944245).

Almost surely, 2^85888489 is an apocalyptic number.

It is an amenable number.

85888489 is a deficient number, since it is larger than the sum of its proper divisors (1).

85888489 is an equidigital number, since it uses as much as digits as its factorization.

85888489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5898240, while the sum is 58.

The square root of 85888489 is about 9267.6042751080. The cubic root of 85888489 is about 441.2096346161.

The spelling of 85888489 in words is "eighty-five million, eight hundred eighty-eight thousand, four hundred eighty-nine".