828664015 has 4 divisors (see below), whose sum is σ = 994396824. Its totient is φ = 662931208.

The previous prime is 828663989. The next prime is 828664021. The reversal of 828664015 is 510466828.

828664015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 828664015 - 2⁹ = 828663503 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

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, 82866397 + ... + 82866406.

It is an arithmetic number, because the mean of its divisors is an integer number (248599206).

Almost surely, 2^828664015 is an apocalyptic number.

828664015 is a deficient number, since it is larger than the sum of its proper divisors (165732809).

828664015 is a wasteful number, since it uses less digits than its factorization.

828664015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165732808.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 828664015 is about 28786.5248857864. The cubic root of 828664015 is about 939.2751371961.

The spelling of 828664015 in words is "eight hundred twenty-eight million, six hundred sixty-four thousand, fifteen".