12039697 has 4 divisors (see below), whose sum is σ = 12127716. Its totient is φ = 11951680.

The previous prime is 12039641. The next prime is 12039701. The reversal of 12039697 is 79693021.

12039697 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79693021 = 739 ⋅107839.

It can be written as a sum of positive squares in 2 ways, for example, as 7750656 + 4289041 = 2784^2 + 2071^2 .

It is a cyclic number.

It is not a de Polignac number, because 12039697 - 2⁷ = 12039569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12039607) by changing a digit.

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, 43804 + ... + 44077.

It is an arithmetic number, because the mean of its divisors is an integer number (3031929).

Almost surely, 2^12039697 is an apocalyptic number.

It is an amenable number.

12039697 is a deficient number, since it is larger than the sum of its proper divisors (88019).

12039697 is an equidigital number, since it uses as much as digits as its factorization.

12039697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88018.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 12039697 is about 3469.8266527307. The cubic root of 12039697 is about 229.1950246487.

The spelling of 12039697 in words is "twelve million, thirty-nine thousand, six hundred ninety-seven".