1386197927 has 2 divisors, whose sum is σ = 1386197928. Its totient is φ = 1386197926.

The previous prime is 1386197899. The next prime is 1386197929. The reversal of 1386197927 is 7297916831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1386197927 - 2⁶ = 1386197863 is a prime.

Together with 1386197929, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1386197929) 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, 693098963 + 693098964.

It is an arithmetic number, because the mean of its divisors is an integer number (693098964).

Almost surely, 2^1386197927 is an apocalyptic number.

1386197927 is a deficient number, since it is larger than the sum of its proper divisors (1).

1386197927 is an equidigital number, since it uses as much as digits as its factorization.

1386197927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 53.

The square root of 1386197927 is about 37231.6790784407. The cubic root of 1386197927 is about 1115.0005501817. Note that the first 3 decimals are identical.

The spelling of 1386197927 in words is "one billion, three hundred eighty-six million, one hundred ninety-seven thousand, nine hundred twenty-seven".