85996997 has 2 divisors, whose sum is σ = 85996998. Its totient is φ = 85996996.

The previous prime is 85996973. The next prime is 85997003. The reversal of 85996997 is 79969958.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52287361 + 33709636 = 7231^2 + 5806^2 .

It is a cyclic number.

It is not a de Polignac number, because 85996997 - 2¹² = 85992901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85996927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42998498 + 42998499.

It is an arithmetic number, because the mean of its divisors is an integer number (42998499).

Almost surely, 2^85996997 is an apocalyptic number.

It is an amenable number.

85996997 is a deficient number, since it is larger than the sum of its proper divisors (1).

85996997 is an equidigital number, since it uses as much as digits as its factorization.

85996997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11022480, while the sum is 62.

The square root of 85996997 is about 9273.4565831733. The cubic root of 85996997 is about 441.3953584879.

The spelling of 85996997 in words is "eighty-five million, nine hundred ninety-six thousand, nine hundred ninety-seven".