800000 has 54 divisors (see below), whose sum is σ = 1995966. Its totient is φ = 320000.

The previous prime is 799999. The next prime is 800011. The reversal of 800000 is 8.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 3 ways, for example, as 369664 + 430336 = 608^2 + 656^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 159998 + ... + 160002.

2⁸⁰⁰⁰⁰⁰ is an apocalyptic number.

800000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (997983).

800000 is an abundant number, since it is smaller than the sum of its proper divisors (1195966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

800000 is an frugal number, since it uses more digits than its factorization.

800000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41 (or 7 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 800000 is about 894.4271909999. The cubic root of 800000 is about 92.8317766723.

The spelling of 800000 in words is "eight hundred thousand".