8011903 has 4 divisors (see below), whose sum is σ = 8018928. Its totient is φ = 8004880.

The previous prime is 8011891. The next prime is 8011921. The reversal of 8011903 is 3091108.

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 8011903 - 2²¹ = 5914751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8011973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1363 + ... + 4228.

It is an arithmetic number, because the mean of its divisors is an integer number (2004732).

Almost surely, 2^8011903 is an apocalyptic number.

8011903 is a deficient number, since it is larger than the sum of its proper divisors (7025).

8011903 is a wasteful number, since it uses less digits than its factorization.

8011903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7024.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 8011903 is about 2830.5305156454. The cubic root of 8011903 is about 200.0991425124.

It can be divided in two parts, 801 and 1903, that added together give a square (2704 = 52²).

The spelling of 8011903 in words is "eight million, eleven thousand, nine hundred three".