828785404 has 24 divisors (see below), whose sum is σ = 1545643008. Its totient is φ = 387940080.

The previous prime is 828785393. The next prime is 828785413. The reversal of 828785404 is 404587828.

It is a happy number.

828785404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91512 + ... + 100159.

It is an arithmetic number, because the mean of its divisors is an integer number (64401792).

Almost surely, 2^828785404 is an apocalyptic number.

It is an amenable number.

828785404 is a deficient number, since it is larger than the sum of its proper divisors (716857604).

828785404 is a wasteful number, since it uses less digits than its factorization.

828785404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191745 (or 191743 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 46.

The square root of 828785404 is about 28788.6332430006. The cubic root of 828785404 is about 939.3209990092.

The spelling of 828785404 in words is "eight hundred twenty-eight million, seven hundred eighty-five thousand, four hundred four".