800078 has 8 divisors (see below), whose sum is σ = 1252368. Its totient is φ = 382624.

The previous prime is 800077. The next prime is 800083. The reversal of 800078 is 870008.

800078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800077) 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, 8651 + ... + 8742.

It is an arithmetic number, because the mean of its divisors is an integer number (156546).

2⁸⁰⁰⁰⁷⁸ is an apocalyptic number.

800078 is a deficient number, since it is larger than the sum of its proper divisors (452290).

800078 is a wasteful number, since it uses less digits than its factorization.

800078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17418.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 800078 is about 894.4707932627. The cubic root of 800078 is about 92.8347936069.

The spelling of 800078 in words is "eight hundred thousand, seventy-eight".