1681348927 has 2 divisors, whose sum is σ = 1681348928. Its totient is φ = 1681348926.

The previous prime is 1681348913. The next prime is 1681348939. The reversal of 1681348927 is 7298431861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1681348927 - 2¹⁵ = 1681316159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1681348957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 840674463 + 840674464.

It is an arithmetic number, because the mean of its divisors is an integer number (840674464).

Almost surely, 2^1681348927 is an apocalyptic number.

1681348927 is a deficient number, since it is larger than the sum of its proper divisors (1).

1681348927 is an equidigital number, since it uses as much as digits as its factorization.

1681348927 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 49.

The square root of 1681348927 is about 41004.2549865255. The cubic root of 1681348927 is about 1189.1024767358.

The spelling of 1681348927 in words is "one billion, six hundred eighty-one million, three hundred forty-eight thousand, nine hundred twenty-seven".