11624421 has 4 divisors (see below), whose sum is σ = 15499232. Its totient is φ = 7749612.

The previous prime is 11624387. The next prime is 11624429. The reversal of 11624421 is 12442611.

It is a happy number.

11624421 is digitally balanced in base 3, 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12442611 = 3 ⋅4147537.

It is not a de Polignac number, because 11624421 - 2⁷ = 11624293 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 (11624429) 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, 1937401 + ... + 1937406.

It is an arithmetic number, because the mean of its divisors is an integer number (3874808).

Almost surely, 2^11624421 is an apocalyptic number.

It is an amenable number.

11624421 is a deficient number, since it is larger than the sum of its proper divisors (3874811).

11624421 is an equidigital number, since it uses as much as digits as its factorization.

11624421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3874810.

The product of its digits is 384, while the sum is 21.

The square root of 11624421 is about 3409.4605145096. The cubic root of 11624421 is about 226.5289838110.

The spelling of 11624421 in words is "eleven million, six hundred twenty-four thousand, four hundred twenty-one".