9001666 has 8 divisors (see below), whose sum is σ = 13515840. Its totient is φ = 4496388.

The previous prime is 9001627. The next prime is 9001667. The reversal of 9001666 is 6661009.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (9001667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1675 + ... + 4561.

It is an arithmetic number, because the mean of its divisors is an integer number (1689480).

Almost surely, 2^9001666 is an apocalyptic number.

9001666 is a deficient number, since it is larger than the sum of its proper divisors (4514174).

9001666 is a wasteful number, since it uses less digits than its factorization.

9001666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4448.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 9001666 is about 3000.2776538181. The cubic root of 9001666 is about 208.0212164009.

The spelling of 9001666 in words is "nine million, one thousand, six hundred sixty-six".