11817628 has 12 divisors (see below), whose sum is σ = 20749120. Its totient is φ = 5889312.

The previous prime is 11817593. The next prime is 11817629. The reversal of 11817628 is 82671811.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 11817593 and 11817602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11817629) 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, 3468 + ... + 5971.

Almost surely, 2^11817628 is an apocalyptic number.

It is an amenable number.

11817628 is a deficient number, since it is larger than the sum of its proper divisors (8931492).

11817628 is a wasteful number, since it uses less digits than its factorization.

11817628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9756 (or 9754 counting only the distinct ones).

The product of its digits is 5376, while the sum is 34.

The square root of 11817628 is about 3437.6777044976. The cubic root of 11817628 is about 227.7771239499. Note that the first 3 decimals are identical.

The spelling of 11817628 in words is "eleven million, eight hundred seventeen thousand, six hundred twenty-eight".