800005231 has 4 divisors (see below), whose sum is σ = 821627032. Its totient is φ = 778383432.

The previous prime is 800005201. The next prime is 800005253. The reversal of 800005231 is 132500008.

It is a happy number.

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 800005231 - 2¹³ = 799997039 is a prime.

It is a super-2 number, since 2×800005231² = 1280016739254726722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 800005199 and 800005208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800005201) 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, 10810845 + ... + 10810918.

It is an arithmetic number, because the mean of its divisors is an integer number (205406758).

Almost surely, 2^800005231 is an apocalyptic number.

800005231 is a deficient number, since it is larger than the sum of its proper divisors (21621801).

800005231 is a wasteful number, since it uses less digits than its factorization.

800005231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21621800.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 800005231 is about 28284.3637192000. The cubic root of 800005231 is about 928.3197900641.

Adding to 800005231 its reverse (132500008), we get a palindrome (932505239).

The spelling of 800005231 in words is "eight hundred million, five thousand, two hundred thirty-one".