86366779 has 2 divisors, whose sum is σ = 86366780. Its totient is φ = 86366778.

The previous prime is 86366773. The next prime is 86366821. The reversal of 86366779 is 97766368.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86366779 - 2¹⁵ = 86334011 is a prime.

It is not a weakly prime, because it can be changed into another prime (86366773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43183389 + 43183390.

It is an arithmetic number, because the mean of its divisors is an integer number (43183390).

Almost surely, 2^86366779 is an apocalyptic number.

86366779 is a deficient number, since it is larger than the sum of its proper divisors (1).

86366779 is an equidigital number, since it uses as much as digits as its factorization.

86366779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 52.

The square root of 86366779 is about 9293.3728538136. The cubic root of 86366779 is about 442.0271118277.

The spelling of 86366779 in words is "eighty-six million, three hundred sixty-six thousand, seven hundred seventy-nine".