12208399 has 8 divisors (see below), whose sum is σ = 14237600. Its totient is φ = 10464048.

The previous prime is 12208381. The next prime is 12208411. The reversal of 12208399 is 99380221.

12208399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12208399 - 2⁵ = 12208367 is a prime.

It is a super-2 number, since 2×12208399² = 298090012286402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12208319) 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, 17454 + ... + 18139.

It is an arithmetic number, because the mean of its divisors is an integer number (1779700).

Almost surely, 2^12208399 is an apocalyptic number.

12208399 is a deficient number, since it is larger than the sum of its proper divisors (2029201).

12208399 is an frugal number, since it uses more digits than its factorization.

12208399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35614 (or 35600 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 12208399 is about 3494.0519458073. The cubic root of 12208399 is about 230.2605679540.

The spelling of 12208399 in words is "twelve million, two hundred eight thousand, three hundred ninety-nine".