800740065 has 8 divisors (see below), whose sum is σ = 1281184128. Its totient is φ = 427061360.

The previous prime is 800740033. The next prime is 800740079. The reversal of 800740065 is 560047008.

It is a happy number.

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

It is not a de Polignac number, because 800740065 - 2⁵ = 800740033 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26691321 + ... + 26691350.

It is an arithmetic number, because the mean of its divisors is an integer number (160148016).

Almost surely, 2^800740065 is an apocalyptic number.

It is an amenable number.

800740065 is a deficient number, since it is larger than the sum of its proper divisors (480444063).

800740065 is a wasteful number, since it uses less digits than its factorization.

800740065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53382679.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 800740065 is about 28297.3508477384. The cubic root of 800740065 is about 928.6039349511.

The spelling of 800740065 in words is "eight hundred million, seven hundred forty thousand, sixty-five".