11603873 has 4 divisors (see below), whose sum is σ = 11822868. Its totient is φ = 11384880.

The previous prime is 11603869. The next prime is 11603881. The reversal of 11603873 is 37830611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3211264 + 8392609 = 1792^2 + 2897^2 .

It is a cyclic number.

It is not a de Polignac number, because 11603873 - 2² = 11603869 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11603833) 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, 109418 + ... + 109523.

It is an arithmetic number, because the mean of its divisors is an integer number (2955717).

Almost surely, 2^11603873 is an apocalyptic number.

It is an amenable number.

11603873 is a deficient number, since it is larger than the sum of its proper divisors (218995).

11603873 is an equidigital number, since it uses as much as digits as its factorization.

11603873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218994.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 11603873 is about 3406.4458017118. The cubic root of 11603873 is about 226.3954298357.

The spelling of 11603873 in words is "eleven million, six hundred three thousand, eight hundred seventy-three".