11284009 has 4 divisors (see below), whose sum is σ = 12309840. Its totient is φ = 10258180.

The previous prime is 11284003. The next prime is 11284019. The reversal of 11284009 is 90048211.

It is a happy number.

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 11284009 - 2⁵ = 11283977 is a prime.

It is a super-2 number, since 2×11284009² = 254657718224162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11284003) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 512899 + ... + 512920.

It is an arithmetic number, because the mean of its divisors is an integer number (3077460).

Almost surely, 2^11284009 is an apocalyptic number.

It is an amenable number.

11284009 is a deficient number, since it is larger than the sum of its proper divisors (1025831).

11284009 is a wasteful number, since it uses less digits than its factorization.

11284009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025830.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 11284009 is about 3359.1679029188. The cubic root of 11284009 is about 224.2957999556.

The spelling of 11284009 in words is "eleven million, two hundred eighty-four thousand, nine".