86234689 has 2 divisors, whose sum is σ = 86234690. Its totient is φ = 86234688.

The previous prime is 86234677. The next prime is 86234699. The reversal of 86234689 is 98643268.

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., 81306289 + 4928400 = 9017^2 + 2220^2 .

It is a cyclic number.

It is not a de Polignac number, because 86234689 - 2⁹ = 86234177 is a prime.

It is not a weakly prime, because it can be changed into another prime (86234609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43117344 + 43117345.

It is an arithmetic number, because the mean of its divisors is an integer number (43117345).

Almost surely, 2^86234689 is an apocalyptic number.

It is an amenable number.

86234689 is a deficient number, since it is larger than the sum of its proper divisors (1).

86234689 is an equidigital number, since it uses as much as digits as its factorization.

86234689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 46.

The square root of 86234689 is about 9286.2634573869. The cubic root of 86234689 is about 441.8016503203.

The spelling of 86234689 in words is "eighty-six million, two hundred thirty-four thousand, six hundred eighty-nine".