1386436387 has 8 divisors (see below), whose sum is σ = 1584934400. Its totient is φ = 1188047304.

The previous prime is 1386436357. The next prime is 1386436391. The reversal of 1386436387 is 7836346831.

It is a happy number.

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 1386436387 - 2¹⁵ = 1386403619 is a prime.

It is a super-2 number, since 2×1386436387² = 3844411710395227538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1386436387.

It is not an unprimeable number, because it can be changed into a prime (1386436307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2164 + ... + 52702.

It is an arithmetic number, because the mean of its divisors is an integer number (198116800).

Almost surely, 2^1386436387 is an apocalyptic number.

1386436387 is a deficient number, since it is larger than the sum of its proper divisors (198498013).

1386436387 is an equidigital number, since it uses as much as digits as its factorization.

1386436387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54465.

The product of its digits is 1741824, while the sum is 49.

The square root of 1386436387 is about 37234.8813211483. The cubic root of 1386436387 is about 1115.0644823185.

The spelling of 1386436387 in words is "one billion, three hundred eighty-six million, four hundred thirty-six thousand, three hundred eighty-seven".