8363906 has 4 divisors (see below), whose sum is σ = 12545862. Its totient is φ = 4181952.

The previous prime is 8363903. The next prime is 8363917. The reversal of 8363906 is 6093638.

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

It can be written as a sum of positive squares in only one way, i.e., 5248681 + 3115225 = 2291^2 + 1765^2 .

It is not an unprimeable number, because it can be changed into a prime (8363903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2090975 + ... + 2090978.

Almost surely, 2^8363906 is an apocalyptic number.

8363906 is a deficient number, since it is larger than the sum of its proper divisors (4181956).

8363906 is a wasteful number, since it uses less digits than its factorization.

8363906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4181955.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 8363906 is about 2892.0418392548. The cubic root of 8363906 is about 202.9876961166.

The spelling of 8363906 in words is "eight million, three hundred sixty-three thousand, nine hundred six".