86780927 has 2 divisors, whose sum is σ = 86780928. Its totient is φ = 86780926.

The previous prime is 86780893. The next prime is 86780929. The reversal of 86780927 is 72908768.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86780927 - 2¹⁴ = 86764543 is a prime.

Together with 86780929, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86780929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43390463 + 43390464.

It is an arithmetic number, because the mean of its divisors is an integer number (43390464).

Almost surely, 2^86780927 is an apocalyptic number.

86780927 is a deficient number, since it is larger than the sum of its proper divisors (1).

86780927 is an equidigital number, since it uses as much as digits as its factorization.

86780927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 86780927 is about 9315.6281055010. The cubic root of 86780927 is about 442.7325250722.

The spelling of 86780927 in words is "eighty-six million, seven hundred eighty thousand, nine hundred twenty-seven".