86067221 has 2 divisors, whose sum is σ = 86067222. Its totient is φ = 86067220.

The previous prime is 86067211. The next prime is 86067299. The reversal of 86067221 is 12276068.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65691025 + 20376196 = 8105^2 + 4514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86067221 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86067211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43033610 + 43033611.

It is an arithmetic number, because the mean of its divisors is an integer number (43033611).

Almost surely, 2^86067221 is an apocalyptic number.

It is an amenable number.

86067221 is a deficient number, since it is larger than the sum of its proper divisors (1).

86067221 is an equidigital number, since it uses as much as digits as its factorization.

86067221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 86067221 is about 9277.2421009694. The cubic root of 86067221 is about 441.5154716525.

The spelling of 86067221 in words is "eighty-six million, sixty-seven thousand, two hundred twenty-one".