1384047 has 20 divisors (see below), whose sum is σ = 2363856. Its totient is φ = 790560.

The previous prime is 1384043. The next prime is 1384067. The reversal of 1384047 is 7404831.

It is not a de Polignac number, because 1384047 - 2² = 1384043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1384047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384043) 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 19 ways as a sum of consecutive naturals, for example, 654 + ... + 1787.

2^1384047 is an apocalyptic number.

1384047 is a deficient number, since it is larger than the sum of its proper divisors (979809).

1384047 is an equidigital number, since it uses as much as digits as its factorization.

1384047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460 (or 2451 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 1384047 is about 1176.4552690179. The cubic root of 1384047 is about 111.4423545926.

Adding to 1384047 its reverse (7404831), we get a palindrome (8788878).

The spelling of 1384047 in words is "one million, three hundred eighty-four thousand, forty-seven".