12828890 has 16 divisors (see below), whose sum is σ = 23298408. Its totient is φ = 5085696.

The previous prime is 12828853. The next prime is 12828911. The reversal of 12828890 is 9882821.

It can be written as a sum of positive squares in 4 ways, for example, as 4870849 + 7958041 = 2207^2 + 2821^2 .

It is an unprimeable number.

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, 4547 + ... + 6806.

Almost surely, 2^12828890 is an apocalyptic number.

12828890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12828890 is a deficient number, since it is larger than the sum of its proper divisors (10469518).

12828890 is a wasteful number, since it uses less digits than its factorization.

12828890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11473.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 12828890 is about 3581.7439886178. The cubic root of 12828890 is about 234.0972761360.

The spelling of 12828890 in words is "twelve million, eight hundred twenty-eight thousand, eight hundred ninety".