11628421 has 8 divisors (see below), whose sum is σ = 13354304. Its totient is φ = 9918720.

The previous prime is 11628413. The next prime is 11628467. The reversal of 11628421 is 12482611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11628421 - 2³ = 11628413 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 (11628401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2460 + ... + 5413.

It is an arithmetic number, because the mean of its divisors is an integer number (1669288).

Almost surely, 2^11628421 is an apocalyptic number.

It is an amenable number.

11628421 is a deficient number, since it is larger than the sum of its proper divisors (1725883).

11628421 is an equidigital number, since it uses as much as digits as its factorization.

11628421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8091.

The product of its digits is 768, while the sum is 25.

The square root of 11628421 is about 3410.0470671239. The cubic root of 11628421 is about 226.5549639443.

The spelling of 11628421 in words is "eleven million, six hundred twenty-eight thousand, four hundred twenty-one".