68947 has 2 divisors, whose sum is σ = 68948. Its totient is φ = 68946.

The previous prime is 68927. The next prime is 68963. The reversal of 68947 is 74986.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68947 - 2⁷ = 68819 is a prime.

68947 is a lucky number.

It is a plaindrome in base 11 and base 15.

It is not a weakly prime, because it can be changed into another prime (68917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34473 + 34474.

It is an arithmetic number, because the mean of its divisors is an integer number (34474).

2⁶⁸⁹⁴⁷ is an apocalyptic number.

68947 is a deficient number, since it is larger than the sum of its proper divisors (1).

68947 is an equidigital number, since it uses as much as digits as its factorization.

68947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 34.

The square root of 68947 is about 262.5776075754. The cubic root of 68947 is about 41.0051550131.

The spelling of 68947 in words is "sixty-eight thousand, nine hundred forty-seven".