11928669 has 4 divisors (see below), whose sum is σ = 15904896. Its totient is φ = 7952444.

The previous prime is 11928649. The next prime is 11928691. The reversal of 11928669 is 96682911.

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.

It is a cyclic number.

It is not a de Polignac number, because 11928669 - 2¹⁶ = 11863133 is a prime.

It is a super-2 number, since 2×11928669² = 284586288223122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11928669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11928649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1988109 + ... + 1988114.

It is an arithmetic number, because the mean of its divisors is an integer number (3976224).

Almost surely, 2^11928669 is an apocalyptic number.

It is an amenable number.

11928669 is a deficient number, since it is larger than the sum of its proper divisors (3976227).

11928669 is an equidigital number, since it uses as much as digits as its factorization.

11928669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3976226.

The product of its digits is 46656, while the sum is 42.

The square root of 11928669 is about 3453.7905263638. The cubic root of 11928669 is about 228.4883155225.

The spelling of 11928669 in words is "eleven million, nine hundred twenty-eight thousand, six hundred sixty-nine".