86711197 has 2 divisors, whose sum is σ = 86711198. Its totient is φ = 86711196.

The previous prime is 86711171. The next prime is 86711201. The reversal of 86711197 is 79111768.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86601636 + 109561 = 9306^2 + 331^2 .

It is a cyclic number.

It is not a de Polignac number, because 86711197 - 2¹⁵ = 86678429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86711137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43355598 + 43355599.

It is an arithmetic number, because the mean of its divisors is an integer number (43355599).

Almost surely, 2^86711197 is an apocalyptic number.

It is an amenable number.

86711197 is a deficient number, since it is larger than the sum of its proper divisors (1).

86711197 is an equidigital number, since it uses as much as digits as its factorization.

86711197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 40.

The square root of 86711197 is about 9311.8847179290. The cubic root of 86711197 is about 442.6139121758.

The spelling of 86711197 in words is "eighty-six million, seven hundred eleven thousand, one hundred ninety-seven".