86351197 has 2 divisors, whose sum is σ = 86351198. Its totient is φ = 86351196.

The previous prime is 86351179. The next prime is 86351201. The reversal of 86351197 is 79115368.

Together with previous prime (86351179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53963716 + 32387481 = 7346^2 + 5691^2 .

It is a cyclic number.

It is not a de Polignac number, because 86351197 - 2¹¹ = 86349149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86351137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43175598 + 43175599.

It is an arithmetic number, because the mean of its divisors is an integer number (43175599).

Almost surely, 2^86351197 is an apocalyptic number.

It is an amenable number.

86351197 is a deficient number, since it is larger than the sum of its proper divisors (1).

86351197 is an equidigital number, since it uses as much as digits as its factorization.

86351197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 40.

The square root of 86351197 is about 9292.5344766646. The cubic root of 86351197 is about 442.0005272204. Note that the first 3 decimals are identical.

The spelling of 86351197 in words is "eighty-six million, three hundred fifty-one thousand, one hundred ninety-seven".