1386934927 has 4 divisors (see below), whose sum is σ = 1585068496. Its totient is φ = 1188801360.

The previous prime is 1386934903. The next prime is 1386934931. The reversal of 1386934927 is 7294396831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1386934927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386904927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99066774 + ... + 99066787.

It is an arithmetic number, because the mean of its divisors is an integer number (396267124).

Almost surely, 2^1386934927 is an apocalyptic number.

1386934927 is a deficient number, since it is larger than the sum of its proper divisors (198133569).

1386934927 is an equidigital number, since it uses as much as digits as its factorization.

1386934927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198133568.

The product of its digits is 1959552, while the sum is 52.

The square root of 1386934927 is about 37241.5752486384. The cubic root of 1386934927 is about 1115.1981193259.

The spelling of 1386934927 in words is "one billion, three hundred eighty-six million, nine hundred thirty-four thousand, nine hundred twenty-seven".