86794889 has 2 divisors, whose sum is σ = 86794890. Its totient is φ = 86794888.

The previous prime is 86794879. The next prime is 86794891. The reversal of 86794889 is 98849768.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86638864 + 156025 = 9308^2 + 395^2 .

It is a cyclic number.

It is not a de Polignac number, because 86794889 - 2⁸ = 86794633 is a prime.

Together with 86794891, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86794819) 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, 43397444 + 43397445.

It is an arithmetic number, because the mean of its divisors is an integer number (43397445).

Almost surely, 2^86794889 is an apocalyptic number.

It is an amenable number.

86794889 is a deficient number, since it is larger than the sum of its proper divisors (1).

86794889 is an equidigital number, since it uses as much as digits as its factorization.

86794889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6967296, while the sum is 59.

The square root of 86794889 is about 9316.3774612239. The cubic root of 86794889 is about 442.7562672325.

The spelling of 86794889 in words is "eighty-six million, seven hundred ninety-four thousand, eight hundred eighty-nine".