12828815 has 8 divisors (see below), whose sum is σ = 15484608. Its totient is φ = 10203040.

The previous prime is 12828811. The next prime is 12828821. The reversal of 12828815 is 51882821.

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

It is not a de Polignac number, because 12828815 - 2² = 12828811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12828811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6551 + ... + 8280.

It is an arithmetic number, because the mean of its divisors is an integer number (1935576).

Almost surely, 2^12828815 is an apocalyptic number.

12828815 is a deficient number, since it is larger than the sum of its proper divisors (2655793).

12828815 is a wasteful number, since it uses less digits than its factorization.

12828815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15009.

The product of its digits is 10240, while the sum is 35.

The square root of 12828815 is about 3581.7335188425. The cubic root of 12828815 is about 234.0968199435.

The spelling of 12828815 in words is "twelve million, eight hundred twenty-eight thousand, eight hundred fifteen".