12821802 has 16 divisors (see below), whose sum is σ = 29307072. Its totient is φ = 3663360.

The previous prime is 12821801. The next prime is 12821803. The reversal of 12821802 is 20812821.

It is an interprime number because it is at equal distance from previous prime (12821801) and next prime (12821803).

It is not an unprimeable number, because it can be changed into a prime (12821801) 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, 152599 + ... + 152682.

It is an arithmetic number, because the mean of its divisors is an integer number (1831692).

Almost surely, 2^12821802 is an apocalyptic number.

12821802 is an abundant number, since it is smaller than the sum of its proper divisors (16485270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12821802 is a wasteful number, since it uses less digits than its factorization.

12821802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305293.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 12821802 is about 3580.7543897900. The cubic root of 12821802 is about 234.0541550456.

The spelling of 12821802 in words is "twelve million, eight hundred twenty-one thousand, eight hundred two".