86211193 has 2 divisors, whose sum is σ = 86211194. Its totient is φ = 86211192.

The previous prime is 86211179. The next prime is 86211197. The reversal of 86211193 is 39111268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81938704 + 4272489 = 9052^2 + 2067^2 .

It is a cyclic number.

It is not a de Polignac number, because 86211193 - 2⁹ = 86210681 is a prime.

It is not a weakly prime, because it can be changed into another prime (86211197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43105596 + 43105597.

It is an arithmetic number, because the mean of its divisors is an integer number (43105597).

Almost surely, 2^86211193 is an apocalyptic number.

It is an amenable number.

86211193 is a deficient number, since it is larger than the sum of its proper divisors (1).

86211193 is an equidigital number, since it uses as much as digits as its factorization.

86211193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 31.

The square root of 86211193 is about 9284.9982767904. The cubic root of 86211193 is about 441.7615214015.

The spelling of 86211193 in words is "eighty-six million, two hundred eleven thousand, one hundred ninety-three".