12308399 has 2 divisors, whose sum is σ = 12308400. Its totient is φ = 12308398.

The previous prime is 12308393. The next prime is 12308411. The reversal of 12308399 is 99380321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12308399 - 2²⁰ = 11259823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12308393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6154199 + 6154200.

It is an arithmetic number, because the mean of its divisors is an integer number (6154200).

Almost surely, 2^12308399 is an apocalyptic number.

12308399 is a deficient number, since it is larger than the sum of its proper divisors (1).

12308399 is an equidigital number, since it uses as much as digits as its factorization.

12308399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 12308399 is about 3508.3327949327. The cubic root of 12308399 is about 230.8875535753.

The spelling of 12308399 in words is "twelve million, three hundred eight thousand, three hundred ninety-nine".