12039997 has 8 divisors (see below), whose sum is σ = 12634112. Its totient is φ = 11458800.

The previous prime is 12039991. The next prime is 12040001. The reversal of 12039997 is 79993021.

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

It is a cyclic number.

It is not a de Polignac number, because 12039997 - 2⁷ = 12039869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12039991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1293 + ... + 5074.

It is an arithmetic number, because the mean of its divisors is an integer number (1579264).

Almost surely, 2^12039997 is an apocalyptic number.

It is an amenable number.

12039997 is a deficient number, since it is larger than the sum of its proper divisors (594115).

12039997 is an equidigital number, since it uses as much as digits as its factorization.

12039997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6459.

The product of its (nonzero) digits is 30618, while the sum is 40.

The square root of 12039997 is about 3469.8698822867. The cubic root of 12039997 is about 229.1969282939.

The spelling of 12039997 in words is "twelve million, thirty-nine thousand, nine hundred ninety-seven".