68688463 has 2 divisors, whose sum is σ = 68688464. Its totient is φ = 68688462.

The previous prime is 68688437. The next prime is 68688497. The reversal of 68688463 is 36488686.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68688463 - 2⁹ = 68687951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68688563) 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, 34344231 + 34344232.

It is an arithmetic number, because the mean of its divisors is an integer number (34344232).

Almost surely, 2^68688463 is an apocalyptic number.

68688463 is a deficient number, since it is larger than the sum of its proper divisors (1).

68688463 is an equidigital number, since it uses as much as digits as its factorization.

68688463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1327104, while the sum is 49.

The square root of 68688463 is about 8287.8503244207. The cubic root of 68688463 is about 409.5383719707.

The spelling of 68688463 in words is "sixty-eight million, six hundred eighty-eight thousand, four hundred sixty-three".