86127289 has 2 divisors, whose sum is σ = 86127290. Its totient is φ = 86127288.

The previous prime is 86127281. The next prime is 86127299. The reversal of 86127289 is 98272168.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85877289 + 250000 = 9267^2 + 500^2 .

It is a cyclic number.

It is not a de Polignac number, because 86127289 - 2³ = 86127281 is a prime.

It is not a weakly prime, because it can be changed into another prime (86127281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43063644 + 43063645.

It is an arithmetic number, because the mean of its divisors is an integer number (43063645).

Almost surely, 2^86127289 is an apocalyptic number.

It is an amenable number.

86127289 is a deficient number, since it is larger than the sum of its proper divisors (1).

86127289 is an equidigital number, since it uses as much as digits as its factorization.

86127289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 43.

The square root of 86127289 is about 9280.4789208316. The cubic root of 86127289 is about 441.6181618660.

The spelling of 86127289 in words is "eighty-six million, one hundred twenty-seven thousand, two hundred eighty-nine".