1384247 has 2 divisors, whose sum is σ = 1384248. Its totient is φ = 1384246.

The previous prime is 1384241. The next prime is 1384249. The reversal of 1384247 is 7424831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1384247 - 2⁴ = 1384231 is a prime.

It is a super-2 number, since 2×1384247² = 3832279514018, which contains 22 as substring.

Together with 1384249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1384241) 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, 692123 + 692124.

It is an arithmetic number, because the mean of its divisors is an integer number (692124).

2^1384247 is an apocalyptic number.

1384247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1384247 is an equidigital number, since it uses as much as digits as its factorization.

1384247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 29.

The square root of 1384247 is about 1176.5402670542. The cubic root of 1384247 is about 111.4477222806.

The spelling of 1384247 in words is "one million, three hundred eighty-four thousand, two hundred forty-seven".