8003906 has 16 divisors (see below), whose sum is σ = 12804480. Its totient is φ = 3739200.

The previous prime is 8003899. The next prime is 8003909. The reversal of 8003906 is 6093008.

It is a happy number.

It is a super-2 number, since 2×8003906² = 128125022513672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8003909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4355 + ... + 5913.

It is an arithmetic number, because the mean of its divisors is an integer number (800280).

Almost surely, 2^8003906 is an apocalyptic number.

8003906 is a deficient number, since it is larger than the sum of its proper divisors (4800574).

8003906 is a wasteful number, since it uses less digits than its factorization.

8003906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 8003906 is about 2829.1175302557. The cubic root of 8003906 is about 200.0325447039.

The spelling of 8003906 in words is "eight million, three thousand, nine hundred six".