1387383 has 8 divisors (see below), whose sum is σ = 1930368. Its totient is φ = 884664.

The previous prime is 1387367. The next prime is 1387403. The reversal of 1387383 is 3837831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1387383 - 2⁴ = 1387367 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9985 + ... + 10122.

It is an arithmetic number, because the mean of its divisors is an integer number (241296).

2^1387383 is an apocalyptic number.

1387383 is a deficient number, since it is larger than the sum of its proper divisors (542985).

1387383 is a wasteful number, since it uses less digits than its factorization.

1387383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20133.

The product of its digits is 12096, while the sum is 33.

The square root of 1387383 is about 1177.8722341578. The cubic root of 1387383 is about 111.5318200991.

It can be divided in two parts, 1387 and 383, that added together give a triangular number (1770 = T₅₉).

The spelling of 1387383 in words is "one million, three hundred eighty-seven thousand, three hundred eighty-three".