86800709 has 2 divisors, whose sum is σ = 86800710. Its totient is φ = 86800708.

The previous prime is 86800687. The next prime is 86800717. The reversal of 86800709 is 90700868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86676100 + 124609 = 9310^2 + 353^2 .

It is a cyclic number.

It is not a de Polignac number, because 86800709 - 2¹² = 86796613 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86800739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43400354 + 43400355.

It is an arithmetic number, because the mean of its divisors is an integer number (43400355).

Almost surely, 2^86800709 is an apocalyptic number.

It is an amenable number.

86800709 is a deficient number, since it is larger than the sum of its proper divisors (1).

86800709 is an equidigital number, since it uses as much as digits as its factorization.

86800709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 86800709 is about 9316.6898091543. The cubic root of 86800709 is about 442.7661632987.

The spelling of 86800709 in words is "eighty-six million, eight hundred thousand, seven hundred nine".