8681903 has 4 divisors (see below), whose sum is σ = 8758848. Its totient is φ = 8604960.

The previous prime is 8681899. The next prime is 8681923. The reversal of 8681903 is 3091868.

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

It is a cyclic number.

It is not a de Polignac number, because 8681903 - 2² = 8681899 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 (8681923) 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, 38303 + ... + 38528.

It is an arithmetic number, because the mean of its divisors is an integer number (2189712).

Almost surely, 2^8681903 is an apocalyptic number.

8681903 is a deficient number, since it is larger than the sum of its proper divisors (76945).

8681903 is a wasteful number, since it uses less digits than its factorization.

8681903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76944.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 8681903 is about 2946.5069149758. The cubic root of 8681903 is about 205.5283061787.

Subtracting from 8681903 its sum of digits (35), we obtain a palindrome (8681868).

The spelling of 8681903 in words is "eight million, six hundred eighty-one thousand, nine hundred three".