86081269 has 2 divisors, whose sum is σ = 86081270. Its totient is φ = 86081268.

The previous prime is 86081243. The next prime is 86081287. The reversal of 86081269 is 96218068.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72846225 + 13235044 = 8535^2 + 3638^2 .

It is a cyclic number.

It is not a de Polignac number, because 86081269 - 2¹³ = 86073077 is a prime.

It is a super-2 number, since 2×86081269² = 14819969745300722, 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 (86081239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43040634 + 43040635.

It is an arithmetic number, because the mean of its divisors is an integer number (43040635).

Almost surely, 2^86081269 is an apocalyptic number.

It is an amenable number.

86081269 is a deficient number, since it is larger than the sum of its proper divisors (1).

86081269 is an equidigital number, since it uses as much as digits as its factorization.

86081269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 86081269 is about 9277.9991916361. Note that the first 3 decimals coincide. The cubic root of 86081269 is about 441.5394919158.

The spelling of 86081269 in words is "eighty-six million, eighty-one thousand, two hundred sixty-nine".