12399598 has 4 divisors (see below), whose sum is σ = 18599400. Its totient is φ = 6199798.

The previous prime is 12399593. The next prime is 12399637. The reversal of 12399598 is 89599321.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12399593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3099898 + ... + 3099901.

It is an arithmetic number, because the mean of its divisors is an integer number (4649850).

Almost surely, 2^12399598 is an apocalyptic number.

12399598 is a deficient number, since it is larger than the sum of its proper divisors (6199802).

12399598 is an equidigital number, since it uses as much as digits as its factorization.

12399598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6199801.

The product of its digits is 174960, while the sum is 46.

The square root of 12399598 is about 3521.3062917048. The cubic root of 12399598 is about 231.4564041761.

The spelling of 12399598 in words is "twelve million, three hundred ninety-nine thousand, five hundred ninety-eight".