68982647 has 2 divisors, whose sum is σ = 68982648. Its totient is φ = 68982646.

The previous prime is 68982611. The next prime is 68982649. The reversal of 68982647 is 74628986.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68982647 - 2¹² = 68978551 is a prime.

Together with 68982649, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 68982595 and 68982604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68982649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34491323 + 34491324.

It is an arithmetic number, because the mean of its divisors is an integer number (34491324).

Almost surely, 2^68982647 is an apocalyptic number.

68982647 is a deficient number, since it is larger than the sum of its proper divisors (1).

68982647 is an equidigital number, since it uses as much as digits as its factorization.

68982647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 50.

The square root of 68982647 is about 8305.5792693827. The cubic root of 68982647 is about 410.1222062837.

The spelling of 68982647 in words is "sixty-eight million, nine hundred eighty-two thousand, six hundred forty-seven".