11964421 has 4 divisors (see below), whose sum is σ = 13673632. Its totient is φ = 10255212.

The previous prime is 11964409. The next prime is 11964427. The reversal of 11964421 is 12446911.

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: 12446911 = 37 ⋅336403.

It is a cyclic number.

It is not a de Polignac number, because 11964421 - 2⁹ = 11963909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11964421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11964427) 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, 854595 + ... + 854608.

It is an arithmetic number, because the mean of its divisors is an integer number (3418408).

Almost surely, 2^11964421 is an apocalyptic number.

It is an amenable number.

11964421 is a deficient number, since it is larger than the sum of its proper divisors (1709211).

11964421 is an equidigital number, since it uses as much as digits as its factorization.

11964421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709210.

The product of its digits is 1728, while the sum is 28.

The square root of 11964421 is about 3458.9624166793. The cubic root of 11964421 is about 228.7163590331.

The spelling of 11964421 in words is "eleven million, nine hundred sixty-four thousand, four hundred twenty-one".