8169906 has 16 divisors (see below), whose sum is σ = 16738848. Its totient is φ = 2656800.

The previous prime is 8169901. The next prime is 8169919. The reversal of 8169906 is 6099618.

It is not an unprimeable number, because it can be changed into a prime (8169901) 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 7 ways as a sum of consecutive naturals, for example, 16360 + ... + 16851.

It is an arithmetic number, because the mean of its divisors is an integer number (1046178).

Almost surely, 2^8169906 is an apocalyptic number.

8169906 is an abundant number, since it is smaller than the sum of its proper divisors (8568942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8169906 is a wasteful number, since it uses less digits than its factorization.

8169906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33257.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 8169906 is about 2858.3047423254. The cubic root of 8169906 is about 201.4059763254.

The spelling of 8169906 in words is "eight million, one hundred sixty-nine thousand, nine hundred six".