11723904 has 48 divisors (see below), whose sum is σ = 33740070. Its totient is φ = 3907584.

The previous prime is 11723903. The next prime is 11723911. The reversal of 11723904 is 40932711.

It can be written as a sum of positive squares in only one way, i.e., 9290304 + 2433600 = 3048^2 + 1560^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (11723903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3937 + ... + 6240.

Almost surely, 2^11723904 is an apocalyptic number.

It is an amenable number.

11723904 is an abundant number, since it is smaller than the sum of its proper divisors (22016166).

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

11723904 is a wasteful number, since it uses less digits than its factorization.

11723904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10197 (or 10182 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 11723904 is about 3424.0186915378. The cubic root of 11723904 is about 227.1733685640.

The spelling of 11723904 in words is "eleven million, seven hundred twenty-three thousand, nine hundred four".