86420069 has 2 divisors, whose sum is σ = 86420070. Its totient is φ = 86420068.

The previous prime is 86420063. The next prime is 86420077. The reversal of 86420069 is 96002468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75463969 + 10956100 = 8687^2 + 3310^2 .

It is a cyclic number.

It is not a de Polignac number, because 86420069 - 2⁸ = 86419813 is a prime.

It is a super-2 number, since 2×86420069² = 14936856651929522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86420063) 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, 43210034 + 43210035.

It is an arithmetic number, because the mean of its divisors is an integer number (43210035).

Almost surely, 2^86420069 is an apocalyptic number.

It is an amenable number.

86420069 is a deficient number, since it is larger than the sum of its proper divisors (1).

86420069 is an equidigital number, since it uses as much as digits as its factorization.

86420069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 86420069 is about 9296.2395085325. The cubic root of 86420069 is about 442.1180062740.

The spelling of 86420069 in words is "eighty-six million, four hundred twenty thousand, sixty-nine".