85085719 has 2 divisors, whose sum is σ = 85085720. Its totient is φ = 85085718.

The previous prime is 85085687. The next prime is 85085753. The reversal of 85085719 is 91758058.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85085719 - 2⁵ = 85085687 is a prime.

It is a super-2 number, since 2×85085719² = 14479159155493922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85085219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42542859 + 42542860.

It is an arithmetic number, because the mean of its divisors is an integer number (42542860).

Almost surely, 2^85085719 is an apocalyptic number.

85085719 is a deficient number, since it is larger than the sum of its proper divisors (1).

85085719 is an equidigital number, since it uses as much as digits as its factorization.

85085719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 43.

The square root of 85085719 is about 9224.1920513398. The cubic root of 85085719 is about 439.8307182826.

The spelling of 85085719 in words is "eighty-five million, eighty-five thousand, seven hundred nineteen".