12399708 has 12 divisors (see below), whose sum is σ = 28932680. Its totient is φ = 4133232.

The previous prime is 12399697. The next prime is 12399727. The reversal of 12399708 is 80799321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516643 + ... + 516666.

Almost surely, 2^12399708 is an apocalyptic number.

It is an amenable number.

12399708 is an abundant number, since it is smaller than the sum of its proper divisors (16532972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12399708 is a wasteful number, since it uses less digits than its factorization.

12399708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033316 (or 1033314 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 12399708 is about 3521.3219108738. The cubic root of 12399708 is about 231.4570886104.

The spelling of 12399708 in words is "twelve million, three hundred ninety-nine thousand, seven hundred eight".