1394047 has 2 divisors, whose sum is σ = 1394048. Its totient is φ = 1394046.

The previous prime is 1394027. The next prime is 1394083. The reversal of 1394047 is 7404931.

It is a weak prime.

It is an emirp because it is prime and its reverse (7404931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1394047 - 2⁷ = 1393919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1394027) 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 as a sum of consecutive naturals, namely, 697023 + 697024.

It is an arithmetic number, because the mean of its divisors is an integer number (697024).

2^1394047 is an apocalyptic number.

1394047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1394047 is an equidigital number, since it uses as much as digits as its factorization.

1394047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1394047 is about 1180.6976751057. The cubic root of 1394047 is about 111.7101080948.

Adding to 1394047 its reverse (7404931), we get a palindrome (8798978).

It can be divided in two parts, 139 and 4047, that added together give a triangular number (4186 = T₉₁).

The spelling of 1394047 in words is "one million, three hundred ninety-four thousand, forty-seven".