11284813 has 8 divisors (see below), whose sum is σ = 11583000. Its totient is φ = 10989888.

The previous prime is 11284781. The next prime is 11284829. The reversal of 11284813 is 31848211.

It can be written as a sum of positive squares in 4 ways, for example, as 8649 + 11276164 = 93^2 + 3358^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11284813 - 2⁵ = 11284781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11224813) 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 7 ways as a sum of consecutive naturals, for example, 7183 + ... + 8611.

It is an arithmetic number, because the mean of its divisors is an integer number (1447875).

Almost surely, 2^11284813 is an apocalyptic number.

It is an amenable number.

11284813 is a deficient number, since it is larger than the sum of its proper divisors (298187).

11284813 is a wasteful number, since it uses less digits than its factorization.

11284813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631.

The product of its digits is 1536, while the sum is 28.

The square root of 11284813 is about 3359.2875732810. The cubic root of 11284813 is about 224.3011269495.

The spelling of 11284813 in words is "eleven million, two hundred eighty-four thousand, eight hundred thirteen".