11893421 has 8 divisors (see below), whose sum is σ = 12625920. Its totient is φ = 11164608.

The previous prime is 11893417. The next prime is 11893439. The reversal of 11893421 is 12439811.

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 11893421 - 2² = 11893417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11893471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8660 + ... + 9938.

It is an arithmetic number, because the mean of its divisors is an integer number (1578240).

Almost surely, 2^11893421 is an apocalyptic number.

It is an amenable number.

11893421 is a deficient number, since it is larger than the sum of its proper divisors (732499).

11893421 is a wasteful number, since it uses less digits than its factorization.

11893421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843.

The product of its digits is 1728, while the sum is 29.

The square root of 11893421 is about 3448.6839518866. The cubic root of 11893421 is about 228.2630402670.

It can be divided in two parts, 118 and 93421, that added together give a palindrome (93539).

The spelling of 11893421 in words is "eleven million, eight hundred ninety-three thousand, four hundred twenty-one".