8999966 has 8 divisors (see below), whose sum is σ = 13548504. Its totient is φ = 4483800.

The previous prime is 8999957. The next prime is 8999971. The reversal of 8999966 is 6699998.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7385 + ... + 8516.

It is an arithmetic number, because the mean of its divisors is an integer number (1693563).

Almost surely, 2^8999966 is an apocalyptic number.

8999966 is a deficient number, since it is larger than the sum of its proper divisors (4548538).

8999966 is a wasteful number, since it uses less digits than its factorization.

8999966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16186.

The product of its digits is 1889568, while the sum is 56.

The square root of 8999966 is about 2999.9943333280. The cubic root of 8999966 is about 208.0081203684.

Subtracting from 8999966 its reverse (6699998), we obtain a cube (2299968 = 132³).

The spelling of 8999966 in words is "eight million, nine hundred ninety-nine thousand, nine hundred sixty-six".