86169269 has 2 divisors, whose sum is σ = 86169270. Its totient is φ = 86169268.

The previous prime is 86169257. The next prime is 86169319. The reversal of 86169269 is 96296168.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58216900 + 27952369 = 7630^2 + 5287^2 .

It is a cyclic number.

It is not a de Polignac number, because 86169269 - 2¹⁶ = 86103733 is a prime.

It is a super-2 number, since 2×86169269² = 14850285839988722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86169229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43084634 + 43084635.

It is an arithmetic number, because the mean of its divisors is an integer number (43084635).

Almost surely, 2^86169269 is an apocalyptic number.

It is an amenable number.

86169269 is a deficient number, since it is larger than the sum of its proper divisors (1).

86169269 is an equidigital number, since it uses as much as digits as its factorization.

86169269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 47.

The square root of 86169269 is about 9282.7403820208. The cubic root of 86169269 is about 441.6899011075.

The spelling of 86169269 in words is "eighty-six million, one hundred sixty-nine thousand, two hundred sixty-nine".