11004421 has 4 divisors (see below), whose sum is σ = 11033100. Its totient is φ = 10975744.

The previous prime is 11004407. The next prime is 11004437. The reversal of 11004421 is 12440011.

11004421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12440011 = 137 ⋅90803.

It can be written as a sum of positive squares in 2 ways, for example, as 6964321 + 4040100 = 2639^2 + 2010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11004421 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 (11004451) 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, 13756 + ... + 14533.

It is an arithmetic number, because the mean of its divisors is an integer number (2758275).

Almost surely, 2^11004421 is an apocalyptic number.

It is an amenable number.

11004421 is a deficient number, since it is larger than the sum of its proper divisors (28679).

11004421 is an equidigital number, since it uses as much as digits as its factorization.

11004421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28678.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 11004421 is about 3317.2912142289. The cubic root of 11004421 is about 222.4277996601.

Adding to 11004421 its reverse (12440011), we get a palindrome (23444432).

The spelling of 11004421 in words is "eleven million, four thousand, four hundred twenty-one".