86791361 has 2 divisors, whose sum is σ = 86791362. Its totient is φ = 86791360.

The previous prime is 86791343. The next prime is 86791387. The reversal of 86791361 is 16319768.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68890000 + 17901361 = 8300^2 + 4231^2 .

It is a cyclic number.

It is not a de Polignac number, because 86791361 - 2¹⁰ = 86790337 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (86791321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43395680 + 43395681.

It is an arithmetic number, because the mean of its divisors is an integer number (43395681).

Almost surely, 2^86791361 is an apocalyptic number.

It is an amenable number.

86791361 is a deficient number, since it is larger than the sum of its proper divisors (1).

86791361 is an equidigital number, since it uses as much as digits as its factorization.

86791361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 41.

The square root of 86791361 is about 9316.1881153184. The cubic root of 86791361 is about 442.7502681647.

The spelling of 86791361 in words is "eighty-six million, seven hundred ninety-one thousand, three hundred sixty-one".