12802089 has 8 divisors (see below), whose sum is σ = 17466592. Its totient is φ = 8336160.

The previous prime is 12802073. The next prime is 12802091. The reversal of 12802089 is 98020821.

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

It is not a de Polignac number, because 12802089 - 2⁴ = 12802073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12802289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49492 + ... + 49749.

It is an arithmetic number, because the mean of its divisors is an integer number (2183324).

Almost surely, 2^12802089 is an apocalyptic number.

It is an amenable number.

12802089 is a deficient number, since it is larger than the sum of its proper divisors (4664503).

12802089 is an equidigital number, since it uses as much as digits as its factorization.

12802089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99287.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 12802089 is about 3578.0006987143. Note that the first 3 decimals coincide. The cubic root of 12802089 is about 233.9341439337.

The spelling of 12802089 in words is "twelve million, eight hundred two thousand, eighty-nine".