800000002 has 8 divisors (see below), whose sum is σ = 1200120012. Its totient is φ = 399960000.

The previous prime is 799999999. The next prime is 800000011. The reversal of 800000002 is 200000008.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 407999601 + 392000401 = 20199^2 + 19799^2 .

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 (2) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29502 + ... + 49702.

Almost surely, 2^800000002 is an apocalyptic number.

800000002 is a deficient number, since it is larger than the sum of its proper divisors (400120010).

800000002 is a wasteful number, since it uses less digits than its factorization.

800000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40004.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 800000002 is about 28284.2712828172. The cubic root of 800000002 is about 928.3177674962.

The spelling of 800000002 in words is "eight hundred million, two", and thus it is an aban number.