1386328907 has 4 divisors (see below), whose sum is σ = 1387649016. Its totient is φ = 1385008800.

The previous prime is 1386328829. The next prime is 1386328919. The reversal of 1386328907 is 7098236831.

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

It is a cyclic number.

It is not a de Polignac number, because 1386328907 - 2⁸ = 1386328651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1386328927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 658478 + ... + 660579.

It is an arithmetic number, because the mean of its divisors is an integer number (346912254).

Almost surely, 2^1386328907 is an apocalyptic number.

1386328907 is a deficient number, since it is larger than the sum of its proper divisors (1320109).

1386328907 is a wasteful number, since it uses less digits than its factorization.

1386328907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320108.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 1386328907 is about 37233.4380228310. The cubic root of 1386328907 is about 1115.0356673824.

The spelling of 1386328907 in words is "one billion, three hundred eighty-six million, three hundred twenty-eight thousand, nine hundred seven".