86000779 has 2 divisors, whose sum is σ = 86000780. Its totient is φ = 86000778.

The previous prime is 86000723. The next prime is 86000801. The reversal of 86000779 is 97700068.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86000779 - 2¹⁵ = 85968011 is a prime.

It is a super-2 number, since 2×86000779² = 14792267977213682, which contains 22 as substring.

It is a Chen prime.

It is equal to p_4998520 and since 86000779 and 4998520 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (86000279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43000389 + 43000390.

It is an arithmetic number, because the mean of its divisors is an integer number (43000390).

Almost surely, 2^86000779 is an apocalyptic number.

86000779 is a deficient number, since it is larger than the sum of its proper divisors (1).

86000779 is an equidigital number, since it uses as much as digits as its factorization.

86000779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 86000779 is about 9273.6604962658. The cubic root of 86000779 is about 441.4018289959.

The spelling of 86000779 in words is "eighty-six million, seven hundred seventy-nine", and thus it is an aban number.