11561928 has 32 divisors (see below), whose sum is σ = 33034560. Its totient is φ = 3303360.

The previous prime is 11561917. The next prime is 11561971. The reversal of 11561928 is 82916511.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 34243 + ... + 34578.

It is an arithmetic number, because the mean of its divisors is an integer number (1032330).

Almost surely, 2^11561928 is an apocalyptic number.

It is an amenable number.

11561928 is an abundant number, since it is smaller than the sum of its proper divisors (21472632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11561928 is a wasteful number, since it uses less digits than its factorization.

11561928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68837 (or 68833 counting only the distinct ones).

The product of its digits is 4320, while the sum is 33.

The square root of 11561928 is about 3400.2835175908. The cubic root of 11561928 is about 226.1223135125.

The spelling of 11561928 in words is "eleven million, five hundred sixty-one thousand, nine hundred twenty-eight".