85365493 has 2 divisors, whose sum is σ = 85365494. Its totient is φ = 85365492.

The previous prime is 85365481. The next prime is 85365509. The reversal of 85365493 is 39456358.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83942244 + 1423249 = 9162^2 + 1193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85365493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85365433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42682746 + 42682747.

It is an arithmetic number, because the mean of its divisors is an integer number (42682747).

Almost surely, 2^85365493 is an apocalyptic number.

It is an amenable number.

85365493 is a deficient number, since it is larger than the sum of its proper divisors (1).

85365493 is an equidigital number, since it uses as much as digits as its factorization.

85365493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 43.

The square root of 85365493 is about 9239.3448360801. The cubic root of 85365493 is about 440.3122662811.

It can be divided in two parts, 85365 and 493, that added together give a palindrome (85858).

The spelling of 85365493 in words is "eighty-five million, three hundred sixty-five thousand, four hundred ninety-three".