1386903 has 16 divisors (see below), whose sum is σ = 2130176. Its totient is φ = 786240.

The previous prime is 1386901. The next prime is 1386929. The reversal of 1386903 is 3096831.

It is not a de Polignac number, because 1386903 - 2¹ = 1386901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386901) 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 15 ways as a sum of consecutive naturals, for example, 4275 + ... + 4587.

It is an arithmetic number, because the mean of its divisors is an integer number (133136).

2^1386903 is an apocalyptic number.

1386903 is a deficient number, since it is larger than the sum of its proper divisors (743273).

1386903 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (1386902) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (534).

1386903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1386903 is about 1177.6684592872. The cubic root of 1386903 is about 111.5189562038.

The spelling of 1386903 in words is "one million, three hundred eighty-six thousand, nine hundred three".