8000066 has 8 divisors (see below), whose sum is σ = 12324540. Its totient is φ = 3891888.

The previous prime is 8000063. The next prime is 8000071. The reversal of 8000066 is 6600008.

It can be written as a sum of positive squares in 2 ways, for example, as 7958041 + 42025 = 2821^2 + 205^2 .

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

8000066 is a modest number, since divided by 66 gives 8 as remainder.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8000063) 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, 53981 + ... + 54128.

Almost surely, 2^8000066 is an apocalyptic number.

8000066 is a deficient number, since it is larger than the sum of its proper divisors (4324474).

8000066 is a wasteful number, since it uses less digits than its factorization.

8000066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108148.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 8000066 is about 2828.4387919840. The cubic root of 8000066 is about 200.0005499985. Note that the first 3 decimals are identical.

The spelling of 8000066 in words is "eight million, sixty-six", and thus it is an aban number and an uban number.