1386863 has 2 divisors, whose sum is σ = 1386864. Its totient is φ = 1386862.

The previous prime is 1386857. The next prime is 1386881. The reversal of 1386863 is 3686831.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1386863 - 2⁸ = 1386607 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1386823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693431 + 693432.

It is an arithmetic number, because the mean of its divisors is an integer number (693432).

2^1386863 is an apocalyptic number.

1386863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1386863 is an equidigital number, since it uses as much as digits as its factorization.

1386863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 35.

The square root of 1386863 is about 1177.6514764564. The cubic root of 1386863 is about 111.5178840786.

Subtracting 1386863 from its reverse (3686831), we obtain a cube (2299968 = 132³).

It can be divided in two parts, 13868 and 63, that added together give a palindrome (13931).

The spelling of 1386863 in words is "one million, three hundred eighty-six thousand, eight hundred sixty-three".