1284117 has 4 divisors (see below), whose sum is σ = 1712160. Its totient is φ = 856076.

The previous prime is 1284083. The next prime is 1284131. The reversal of 1284117 is 7114821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1284117 - 2⁶ = 1284053 is a prime.

It is a D-number.

1284117 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1284187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214017 + ... + 214022.

It is an arithmetic number, because the mean of its divisors is an integer number (428040).

2^1284117 is an apocalyptic number.

It is an amenable number.

1284117 is a deficient number, since it is larger than the sum of its proper divisors (428043).

1284117 is an equidigital number, since it uses as much as digits as its factorization.

1284117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428042.

The product of its digits is 448, while the sum is 24.

The square root of 1284117 is about 1133.1888633410. The cubic root of 1284117 is about 108.6929890107.

Adding to 1284117 its reverse (7114821), we get a palindrome (8398938).

The spelling of 1284117 in words is "one million, two hundred eighty-four thousand, one hundred seventeen".