86719 has 2 divisors, whose sum is σ = 86720. Its totient is φ = 86718.

The previous prime is 86711. The next prime is 86729. The reversal of 86719 is 91768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86719 - 2³ = 86711 is a prime.

It is a super-2 number, since 2×86719² = 15040369922, which contains 22 as substring.

86719 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86711) 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, 43359 + 43360.

It is an arithmetic number, because the mean of its divisors is an integer number (43360).

2⁸⁶⁷¹⁹ is an apocalyptic number.

86719 is a deficient number, since it is larger than the sum of its proper divisors (1).

86719 is an equidigital number, since it uses as much as digits as its factorization.

86719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 31.

The square root of 86719 is about 294.4808992108. The cubic root of 86719 is about 44.2627188480.

The spelling of 86719 in words is "eighty-six thousand, seven hundred nineteen".