11284861 has 4 divisors (see below), whose sum is σ = 12896992. Its totient is φ = 9672732.

The previous prime is 11284829. The next prime is 11284907. The reversal of 11284861 is 16848211.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16848211 = 4001 ⋅4211.

It is a cyclic number.

It is not a de Polignac number, because 11284861 - 2⁵ = 11284829 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 (11284261) 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 in 3 ways as a sum of consecutive naturals, for example, 806055 + ... + 806068.

It is an arithmetic number, because the mean of its divisors is an integer number (3224248).

Almost surely, 2^11284861 is an apocalyptic number.

It is an amenable number.

11284861 is a deficient number, since it is larger than the sum of its proper divisors (1612131).

11284861 is an equidigital number, since it uses as much as digits as its factorization.

11284861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612130.

The product of its digits is 3072, while the sum is 31.

The square root of 11284861 is about 3359.2947176454. The cubic root of 11284861 is about 224.3014449710.

The spelling of 11284861 in words is "eleven million, two hundred eighty-four thousand, eight hundred sixty-one".