8947166 has 4 divisors (see below), whose sum is σ = 13420752. Its totient is φ = 4473582.

The previous prime is 8947153. The next prime is 8947171. The reversal of 8947166 is 6617498.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6617498 = 2 ⋅3308749.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2236790 + ... + 2236793.

It is an arithmetic number, because the mean of its divisors is an integer number (3355188).

Almost surely, 2^8947166 is an apocalyptic number.

8947166 is a deficient number, since it is larger than the sum of its proper divisors (4473586).

8947166 is a wasteful number, since it uses less digits than its factorization.

8947166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4473585.

The product of its digits is 72576, while the sum is 41.

The square root of 8947166 is about 2991.1813719666. The cubic root of 8947166 is about 207.6005493233.

The spelling of 8947166 in words is "eight million, nine hundred forty-seven thousand, one hundred sixty-six".