1383975 has 18 divisors (see below), whose sum is σ = 2479256. Its totient is φ = 738000.

The previous prime is 1383961. The next prime is 1383983. The reversal of 1383975 is 5793831.

It is not a de Polignac number, because 1383975 - 2⁴ = 1383959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 2851 + ... + 3300.

2^1383975 is an apocalyptic number.

1383975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1383975 is a deficient number, since it is larger than the sum of its proper divisors (1095281).

1383975 is a wasteful number, since it uses less digits than its factorization.

1383975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6167 (or 6159 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 1383975 is about 1176.4246682215. The cubic root of 1383975 is about 111.4404220983.

The spelling of 1383975 in words is "one million, three hundred eighty-three thousand, nine hundred seventy-five".