11687003 has 4 divisors (see below), whose sum is σ = 11694648. Its totient is φ = 11679360.

The previous prime is 11686999. The next prime is 11687057. The reversal of 11687003 is 30078611.

11687003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11687003 - 2² = 11686999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11687063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653 + ... + 4878.

It is an arithmetic number, because the mean of its divisors is an integer number (2923662).

Almost surely, 2^11687003 is an apocalyptic number.

11687003 is a deficient number, since it is larger than the sum of its proper divisors (7645).

11687003 is an equidigital number, since it uses as much as digits as its factorization.

11687003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7644.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 11687003 is about 3418.6258935426. The cubic root of 11687003 is about 226.9347752600.

The spelling of 11687003 in words is "eleven million, six hundred eighty-seven thousand, three".