85925993 has 2 divisors, whose sum is σ = 85925994. Its totient is φ = 85925992.

The previous prime is 85925977. The next prime is 85926023. The reversal of 85925993 is 39952958.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53173264 + 32752729 = 7292^2 + 5723^2 .

It is a cyclic number.

It is not a de Polignac number, because 85925993 - 2⁴ = 85925977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (85925933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42962996 + 42962997.

It is an arithmetic number, because the mean of its divisors is an integer number (42962997).

Almost surely, 2^85925993 is an apocalyptic number.

It is an amenable number.

85925993 is a deficient number, since it is larger than the sum of its proper divisors (1).

85925993 is an equidigital number, since it uses as much as digits as its factorization.

85925993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 874800, while the sum is 50.

The square root of 85925993 is about 9269.6274466669. The cubic root of 85925993 is about 441.2738446883.

The spelling of 85925993 in words is "eighty-five million, nine hundred twenty-five thousand, nine hundred ninety-three".