85741919 has 2 divisors, whose sum is σ = 85741920. Its totient is φ = 85741918.

The previous prime is 85741849. The next prime is 85741921. The reversal of 85741919 is 91914758.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85741919 - 2²⁴ = 68964703 is a prime.

It is a super-2 number, since 2×85741919² = 14703353347605122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 85741921, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85741919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85741979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42870959 + 42870960.

It is an arithmetic number, because the mean of its divisors is an integer number (42870960).

Almost surely, 2^85741919 is an apocalyptic number.

85741919 is a deficient number, since it is larger than the sum of its proper divisors (1).

85741919 is an equidigital number, since it uses as much as digits as its factorization.

85741919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 44.

The square root of 85741919 is about 9259.6932454591. The cubic root of 85741919 is about 440.9585147532.

The spelling of 85741919 in words is "eighty-five million, seven hundred forty-one thousand, nine hundred nineteen".