808421231 has 8 divisors (see below), whose sum is σ = 829119984. Its totient is φ = 787769280.

The previous prime is 808421219. The next prime is 808421239. The reversal of 808421231 is 132124808.

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

It is a cyclic number.

It is not a de Polignac number, because 808421231 - 2¹⁸ = 808159087 is a prime.

It is a super-2 number, since 2×808421231² = 1307089773463110722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 808421194 and 808421203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808421239) by changing a digit.

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, 24716 + ... + 47198.

It is an arithmetic number, because the mean of its divisors is an integer number (103639998).

Almost surely, 2^808421231 is an apocalyptic number.

808421231 is a deficient number, since it is larger than the sum of its proper divisors (20698753).

808421231 is a wasteful number, since it uses less digits than its factorization.

808421231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23401.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 808421231 is about 28432.7492691087. The cubic root of 808421231 is about 931.5637279618.

The spelling of 808421231 in words is "eight hundred eight million, four hundred twenty-one thousand, two hundred thirty-one".