1386387 has 6 divisors (see below), whose sum is σ = 2002572. Its totient is φ = 924252.

The previous prime is 1386383. The next prime is 1386419. The reversal of 1386387 is 7836831.

1386387 is a `hidden beast` number, since 13 + 8 + 638 + 7 = 666.

It is not a de Polignac number, because 1386387 - 2² = 1386383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1386383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77013 + ... + 77030.

It is an arithmetic number, because the mean of its divisors is an integer number (333762).

2^1386387 is an apocalyptic number.

1386387 is a deficient number, since it is larger than the sum of its proper divisors (616185).

1386387 is a wasteful number, since it uses less digits than its factorization.

1386387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154049 (or 154046 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 1386387 is about 1177.4493619685. The cubic root of 1386387 is about 111.5051242056.

The spelling of 1386387 in words is "one million, three hundred eighty-six thousand, three hundred eighty-seven".