86127869 has 2 divisors, whose sum is σ = 86127870. Its totient is φ = 86127868.

The previous prime is 86127799. The next prime is 86127901. The reversal of 86127869 is 96872168.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69522244 + 16605625 = 8338^2 + 4075^2 .

It is a cyclic number.

It is not a de Polignac number, because 86127869 - 2¹² = 86123773 is a prime.

It is a super-2 number, since 2×86127869² = 14836019636962322, 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 (86121869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43063934 + 43063935.

It is an arithmetic number, because the mean of its divisors is an integer number (43063935).

Almost surely, 2^86127869 is an apocalyptic number.

It is an amenable number.

86127869 is a deficient number, since it is larger than the sum of its proper divisors (1).

86127869 is an equidigital number, since it uses as much as digits as its factorization.

86127869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 47.

The square root of 86127869 is about 9280.5101691663. The cubic root of 86127869 is about 441.6191531816.

The spelling of 86127869 in words is "eighty-six million, one hundred twenty-seven thousand, eight hundred sixty-nine".