12209798 has 8 divisors (see below), whose sum is σ = 18535608. Its totient is φ = 6031264.

The previous prime is 12209777. The next prime is 12209809. The reversal of 12209798 is 89790221.

12209798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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, 36611 + ... + 36942.

It is an arithmetic number, because the mean of its divisors is an integer number (2316951).

Almost surely, 2^12209798 is an apocalyptic number.

12209798 is a deficient number, since it is larger than the sum of its proper divisors (6325810).

12209798 is an equidigital number, since it uses as much as digits as its factorization.

12209798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73638.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 12209798 is about 3494.2521374394. The cubic root of 12209798 is about 230.2693630529.

The spelling of 12209798 in words is "twelve million, two hundred nine thousand, seven hundred ninety-eight".