68681927 has 2 divisors, whose sum is σ = 68681928. Its totient is φ = 68681926.

The previous prime is 68681911. The next prime is 68681983. The reversal of 68681927 is 72918686.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68681927 - 2⁴ = 68681911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68681527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34340963 + 34340964.

It is an arithmetic number, because the mean of its divisors is an integer number (34340964).

Almost surely, 2^68681927 is an apocalyptic number.

68681927 is a deficient number, since it is larger than the sum of its proper divisors (1).

68681927 is an equidigital number, since it uses as much as digits as its factorization.

68681927 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 47.

The square root of 68681927 is about 8287.4560028998. The cubic root of 68681927 is about 409.5253817849.

The spelling of 68681927 in words is "sixty-eight million, six hundred eighty-one thousand, nine hundred twenty-seven".