11728803 has 16 divisors (see below), whose sum is σ = 16091136. Its totient is φ = 7595520.

The previous prime is 11728799. The next prime is 11728807. The reversal of 11728803 is 30882711.

It is a happy number.

11728803 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11728799) and next prime (11728807).

It is not a de Polignac number, because 11728803 - 2² = 11728799 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11728807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26998 + ... + 27428.

It is an arithmetic number, because the mean of its divisors is an integer number (1005696).

Almost surely, 2^11728803 is an apocalyptic number.

11728803 is a deficient number, since it is larger than the sum of its proper divisors (4362333).

11728803 is a wasteful number, since it uses less digits than its factorization.

11728803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 11728803 is about 3424.7340042695. The cubic root of 11728803 is about 227.2050066984.

It can be divided in two parts, 117 and 28803, that added together give a triangular number (28920 = T₂₄₀).

The spelling of 11728803 in words is "eleven million, seven hundred twenty-eight thousand, eight hundred three".