12821092 has 12 divisors (see below), whose sum is σ = 23043580. Its totient is φ = 6237216.

The previous prime is 12821087. The next prime is 12821117. The reversal of 12821092 is 29012821.

It can be written as a sum of positive squares in 2 ways, for example, as 9339136 + 3481956 = 3056^2 + 1866^2 .

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, 43167 + ... + 43462.

Almost surely, 2^12821092 is an apocalyptic number.

It is an amenable number.

12821092 is a deficient number, since it is larger than the sum of its proper divisors (10222488).

12821092 is a wasteful number, since it uses less digits than its factorization.

12821092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86670 (or 86668 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 12821092 is about 3580.6552472976. The cubic root of 12821092 is about 234.0498347606.

The spelling of 12821092 in words is "twelve million, eight hundred twenty-one thousand, ninety-two".