85168427 has 2 divisors, whose sum is σ = 85168428. Its totient is φ = 85168426.

The previous prime is 85168409. The next prime is 85168429. The reversal of 85168427 is 72486158.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85168427 is a prime.

Together with 85168429, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85168429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42584213 + 42584214.

It is an arithmetic number, because the mean of its divisors is an integer number (42584214).

Almost surely, 2^85168427 is an apocalyptic number.

85168427 is a deficient number, since it is larger than the sum of its proper divisors (1).

85168427 is an equidigital number, since it uses as much as digits as its factorization.

85168427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 41.

The square root of 85168427 is about 9228.6741734661. The cubic root of 85168427 is about 439.9731853494.

The spelling of 85168427 in words is "eighty-five million, one hundred sixty-eight thousand, four hundred twenty-seven".