85497697 has 2 divisors, whose sum is σ = 85497698. Its totient is φ = 85497696.

The previous prime is 85497689. The next prime is 85497733. The reversal of 85497697 is 79679458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84621601 + 876096 = 9199^2 + 936^2 .

It is a cyclic number.

It is not a de Polignac number, because 85497697 - 2³ = 85497689 is a prime.

It is not a weakly prime, because it can be changed into another prime (85497617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42748848 + 42748849.

It is an arithmetic number, because the mean of its divisors is an integer number (42748849).

Almost surely, 2^85497697 is an apocalyptic number.

It is an amenable number.

85497697 is a deficient number, since it is larger than the sum of its proper divisors (1).

85497697 is an equidigital number, since it uses as much as digits as its factorization.

85497697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 55.

The square root of 85497697 is about 9246.4964716372. The cubic root of 85497697 is about 440.5394502657.

It can be divided in two parts, 8549769 and 7, that added together give a square (8549776 = 2924²).

The spelling of 85497697 in words is "eighty-five million, four hundred ninety-seven thousand, six hundred ninety-seven".