826485728 has 24 divisors (see below), whose sum is σ = 1627956792. Its totient is φ = 413036416.

The previous prime is 826485721. The next prime is 826485733. The reversal of 826485728 is 827584628.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (826485721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74051 + ... + 84477.

It is an arithmetic number, because the mean of its divisors is an integer number (67831533).

Almost surely, 2^826485728 is an apocalyptic number.

It is an amenable number.

826485728 is a deficient number, since it is larger than the sum of its proper divisors (801471064).

826485728 is a wasteful number, since it uses less digits than its factorization.

826485728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12914 (or 12906 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 50.

The square root of 826485728 is about 28748.6648037783. The cubic root of 826485728 is about 938.4513991586.

The spelling of 826485728 in words is "eight hundred twenty-six million, four hundred eighty-five thousand, seven hundred twenty-eight".