86311369 has 2 divisors, whose sum is σ = 86311370. Its totient is φ = 86311368.

The previous prime is 86311367. The next prime is 86311391. The reversal of 86311369 is 96311368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73616400 + 12694969 = 8580^2 + 3563^2 .

It is a cyclic number.

It is not a de Polignac number, because 86311369 - 2¹ = 86311367 is a prime.

It is a super-2 number, since 2×86311369² = 14899304837308322, which contains 22 as substring.

Together with 86311367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (86311361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43155684 + 43155685.

It is an arithmetic number, because the mean of its divisors is an integer number (43155685).

Almost surely, 2^86311369 is an apocalyptic number.

It is an amenable number.

86311369 is a deficient number, since it is larger than the sum of its proper divisors (1).

86311369 is an equidigital number, since it uses as much as digits as its factorization.

86311369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 37.

The square root of 86311369 is about 9290.3912188885. The cubic root of 86311369 is about 441.9325617305.

Subtracting 86311369 from its reverse (96311368), we obtain a palindrome (9999999).

It can be divided in two parts, 8631 and 1369, that added together give a 4-th power (10000 = 10⁴).

The spelling of 86311369 in words is "eighty-six million, three hundred eleven thousand, three hundred sixty-nine".