1680931327 has 2 divisors, whose sum is σ = 1680931328. Its totient is φ = 1680931326.

The previous prime is 1680931313. The next prime is 1680931337. The reversal of 1680931327 is 7231390861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1680931327 - 2¹¹ = 1680929279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1680931327.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1680931337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 840465663 + 840465664.

It is an arithmetic number, because the mean of its divisors is an integer number (840465664).

Almost surely, 2^1680931327 is an apocalyptic number.

1680931327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1680931327 is an equidigital number, since it uses as much as digits as its factorization.

1680931327 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 1680931327 is about 40999.1625158368. The cubic root of 1680931327 is about 1189.0040219964.

The spelling of 1680931327 in words is "one billion, six hundred eighty million, nine hundred thirty-one thousand, three hundred twenty-seven".