11573916 has 24 divisors (see below), whose sum is σ = 27311760. Its totient is φ = 3814272.

The previous prime is 11573909. The next prime is 11573921. The reversal of 11573916 is 61937511.

It is a happy number.

It is a congruent number.

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, 4351 + ... + 6486.

It is an arithmetic number, because the mean of its divisors is an integer number (1137990).

Almost surely, 2^11573916 is an apocalyptic number.

It is an amenable number.

11573916 is an abundant number, since it is smaller than the sum of its proper divisors (15737844).

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

11573916 is a wasteful number, since it uses less digits than its factorization.

11573916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10933 (or 10931 counting only the distinct ones).

The product of its digits is 5670, while the sum is 33.

The square root of 11573916 is about 3402.0458550702. The cubic root of 11573916 is about 226.2004382552.

The spelling of 11573916 in words is "eleven million, five hundred seventy-three thousand, nine hundred sixteen".