1386230691 has 8 divisors (see below), whose sum is σ = 1849003200. Its totient is φ = 923805992.

The previous prime is 1386230687. The next prime is 1386230701. The reversal of 1386230691 is 1960326831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1386230691 - 2² = 1386230687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1386230621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77505 + ... + 93698.

It is an arithmetic number, because the mean of its divisors is an integer number (231125400).

Almost surely, 2^1386230691 is an apocalyptic number.

1386230691 is a deficient number, since it is larger than the sum of its proper divisors (462772509).

1386230691 is a wasteful number, since it uses less digits than its factorization.

1386230691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173905.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 1386230691 is about 37232.1190774847. The cubic root of 1386230691 is about 1115.0093347835.

The spelling of 1386230691 in words is "one billion, three hundred eighty-six million, two hundred thirty thousand, six hundred ninety-one".