85773719 has 2 divisors, whose sum is σ = 85773720. Its totient is φ = 85773718.

The previous prime is 85773689. The next prime is 85773767. The reversal of 85773719 is 91737758.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85773719 - 2¹² = 85769623 is a prime.

It is a super-2 number, since 2×85773719² = 14714261742181922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85773799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42886859 + 42886860.

It is an arithmetic number, because the mean of its divisors is an integer number (42886860).

Almost surely, 2^85773719 is an apocalyptic number.

85773719 is a deficient number, since it is larger than the sum of its proper divisors (1).

85773719 is an equidigital number, since it uses as much as digits as its factorization.

85773719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 370440, while the sum is 47.

The square root of 85773719 is about 9261.4102057948. The cubic root of 85773719 is about 441.0130223101.

The spelling of 85773719 in words is "eighty-five million, seven hundred seventy-three thousand, seven hundred nineteen".