86329121 has 2 divisors, whose sum is σ = 86329122. Its totient is φ = 86329120.

The previous prime is 86329109. The next prime is 86329129. The reversal of 86329121 is 12192368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79852096 + 6477025 = 8936^2 + 2545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86329121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86329129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43164560 + 43164561.

It is an arithmetic number, because the mean of its divisors is an integer number (43164561).

Almost surely, 2^86329121 is an apocalyptic number.

It is an amenable number.

86329121 is a deficient number, since it is larger than the sum of its proper divisors (1).

86329121 is an equidigital number, since it uses as much as digits as its factorization.

86329121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 32.

The square root of 86329121 is about 9291.3465654877. The cubic root of 86329121 is about 441.9628576585.

The spelling of 86329121 in words is "eighty-six million, three hundred twenty-nine thousand, one hundred twenty-one".