11664428 has 6 divisors (see below), whose sum is σ = 20412756. Its totient is φ = 5832212.

The previous prime is 11664421. The next prime is 11664437. The reversal of 11664428 is 82446611.

It is a junction number, because it is equal to n+sod(n) for n = 11664394 and 11664403.

It is not an unprimeable number, because it can be changed into a prime (11664421) 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 as a sum of consecutive naturals, namely, 1458050 + ... + 1458057.

It is an arithmetic number, because the mean of its divisors is an integer number (3402126).

Almost surely, 2^11664428 is an apocalyptic number.

It is an amenable number.

11664428 is a deficient number, since it is larger than the sum of its proper divisors (8748328).

11664428 is a wasteful number, since it uses less digits than its factorization.

11664428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916111 (or 2916109 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 11664428 is about 3415.3225323533. The cubic root of 11664428 is about 226.7885628474.

The spelling of 11664428 in words is "eleven million, six hundred sixty-four thousand, four hundred twenty-eight".