85894493 has 2 divisors, whose sum is σ = 85894494. Its totient is φ = 85894492.

The previous prime is 85894483. The next prime is 85894517. The reversal of 85894493 is 39449858.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44382244 + 41512249 = 6662^2 + 6443^2 .

It is a cyclic number.

It is not a de Polignac number, because 85894493 - 2⁶ = 85894429 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85894423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42947246 + 42947247.

It is an arithmetic number, because the mean of its divisors is an integer number (42947247).

Almost surely, 2^85894493 is an apocalyptic number.

It is an amenable number.

85894493 is a deficient number, since it is larger than the sum of its proper divisors (1).

85894493 is an equidigital number, since it uses as much as digits as its factorization.

85894493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 50.

The square root of 85894493 is about 9267.9281935069. The cubic root of 85894493 is about 441.2199152368.

The spelling of 85894493 in words is "eighty-five million, eight hundred ninety-four thousand, four hundred ninety-three".