85935851 has 2 divisors, whose sum is σ = 85935852. Its totient is φ = 85935850.

The previous prime is 85935827. The next prime is 85935859. The reversal of 85935851 is 15853958.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85935851 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85935859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42967925 + 42967926.

It is an arithmetic number, because the mean of its divisors is an integer number (42967926).

Almost surely, 2^85935851 is an apocalyptic number.

85935851 is a deficient number, since it is larger than the sum of its proper divisors (1).

85935851 is an equidigital number, since it uses as much as digits as its factorization.

85935851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216000, while the sum is 44.

The square root of 85935851 is about 9270.1591679971. The cubic root of 85935851 is about 441.2907193307.

The spelling of 85935851 in words is "eighty-five million, nine hundred thirty-five thousand, eight hundred fifty-one".