800478079 has 4 divisors (see below), whose sum is σ = 806781184. Its totient is φ = 794174976.

The previous prime is 800478061. The next prime is 800478083. The reversal of 800478079 is 970874008.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 800478079 - 2²¹ = 798380927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800478059) 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, 3151362 + ... + 3151615.

It is an arithmetic number, because the mean of its divisors is an integer number (201695296).

Almost surely, 2^800478079 is an apocalyptic number.

800478079 is a deficient number, since it is larger than the sum of its proper divisors (6303105).

800478079 is a wasteful number, since it uses less digits than its factorization.

800478079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6303104.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 800478079 is about 28292.7213077852. The cubic root of 800478079 is about 928.5026504110.

The spelling of 800478079 in words is "eight hundred million, four hundred seventy-eight thousand, seventy-nine".