1383963 has 16 divisors (see below), whose sum is σ = 2146560. Its totient is φ = 776736.

The previous prime is 1383961. The next prime is 1383983. The reversal of 1383963 is 3693831.

It is not a de Polignac number, because 1383963 - 2¹ = 1383961 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383961) 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, 681 + ... + 1797.

It is an arithmetic number, because the mean of its divisors is an integer number (134160).

2^1383963 is an apocalyptic number.

1383963 is a deficient number, since it is larger than the sum of its proper divisors (762597).

1383963 is a wasteful number, since it uses less digits than its factorization.

1383963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186.

The product of its digits is 11664, while the sum is 33.

The square root of 1383963 is about 1176.4195680113. The cubic root of 1383963 is about 111.4401000094.

It can be divided in two parts, 1383 and 963, that added together give a triangular number (2346 = T₆₈).

The spelling of 1383963 in words is "one million, three hundred eighty-three thousand, nine hundred sixty-three".