820433804 has 12 divisors (see below), whose sum is σ = 1520215704. Its totient is φ = 386086464.

The previous prime is 820433797. The next prime is 820433837. The reversal of 820433804 is 408334028.

820433804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×820433804² = 1346223253491820832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6032534 + ... + 6032669.

It is an arithmetic number, because the mean of its divisors is an integer number (126684642).

Almost surely, 2^820433804 is an apocalyptic number.

It is an amenable number.

820433804 is a deficient number, since it is larger than the sum of its proper divisors (699781900).

820433804 is a wasteful number, since it uses less digits than its factorization.

820433804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12065224 (or 12065222 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 820433804 is about 28643.2156714291. The cubic root of 820433804 is about 936.1551886132.

The spelling of 820433804 in words is "eight hundred twenty million, four hundred thirty-three thousand, eight hundred four".