11894421 has 48 divisors (see below), whose sum is σ = 20701184. Its totient is φ = 5940000.

The previous prime is 11894413. The next prime is 11894423. The reversal of 11894421 is 12449811.

It is not a de Polignac number, because 11894421 - 2³ = 11894413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11894423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78696 + ... + 78846.

Almost surely, 2^11894421 is an apocalyptic number.

11894421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11894421 is a deficient number, since it is larger than the sum of its proper divisors (8806763).

11894421 is a wasteful number, since it uses less digits than its factorization.

11894421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 203 counting only the distinct ones).

The product of its digits is 2304, while the sum is 30.

The square root of 11894421 is about 3448.8289316810. The cubic root of 11894421 is about 228.2694375473.

The spelling of 11894421 in words is "eleven million, eight hundred ninety-four thousand, four hundred twenty-one".