8991266 has 16 divisors (see below), whose sum is σ = 14497056. Its totient is φ = 4166976.

The previous prime is 8991253. The next prime is 8991289. The reversal of 8991266 is 6621998.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305 + ... + 4251.

It is an arithmetic number, because the mean of its divisors is an integer number (906066).

Almost surely, 2^8991266 is an apocalyptic number.

8991266 is a deficient number, since it is larger than the sum of its proper divisors (5505790).

8991266 is a wasteful number, since it uses less digits than its factorization.

8991266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4033.

The product of its digits is 46656, while the sum is 41.

The square root of 8991266 is about 2998.5439800010. The cubic root of 8991266 is about 207.9410736677.

The spelling of 8991266 in words is "eight million, nine hundred ninety-one thousand, two hundred sixty-six".