688000927 has 2 divisors, whose sum is σ = 688000928. Its totient is φ = 688000926.

The previous prime is 688000889. The next prime is 688000969. The reversal of 688000927 is 729000886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 688000927 - 2¹¹ = 687998879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 688000927.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (688000997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344000463 + 344000464.

It is an arithmetic number, because the mean of its divisors is an integer number (344000464).

Almost surely, 2^688000927 is an apocalyptic number.

688000927 is a deficient number, since it is larger than the sum of its proper divisors (1).

688000927 is an equidigital number, since it uses as much as digits as its factorization.

688000927 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 688000927 is about 26229.7717679739. The cubic root of 688000927 is about 882.8013889788.

The spelling of 688000927 in words is "six hundred eighty-eight million, nine hundred twenty-seven", and thus it is an aban number.