86959669 has 2 divisors, whose sum is σ = 86959670. Its totient is φ = 86959668.

The previous prime is 86959633. The next prime is 86959673. The reversal of 86959669 is 96695968.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76475025 + 10484644 = 8745^2 + 3238^2 .

It is a cyclic number.

It is not a de Polignac number, because 86959669 - 2⁹ = 86959157 is a prime.

It is a super-2 number, since 2×86959669² = 15123968065179122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86959699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43479834 + 43479835.

It is an arithmetic number, because the mean of its divisors is an integer number (43479835).

Almost surely, 2^86959669 is an apocalyptic number.

It is an amenable number.

86959669 is a deficient number, since it is larger than the sum of its proper divisors (1).

86959669 is an equidigital number, since it uses as much as digits as its factorization.

86959669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6298560, while the sum is 58.

The square root of 86959669 is about 9325.2168339401. The cubic root of 86959669 is about 443.0362808653.

The spelling of 86959669 in words is "eighty-six million, nine hundred fifty-nine thousand, six hundred sixty-nine".