12069439 has 4 divisors (see below), whose sum is σ = 12779424. Its totient is φ = 11359456.

The previous prime is 12069413. The next prime is 12069443. The reversal of 12069439 is 93496021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93496021 = 67 ⋅1395463.

It is a cyclic number.

It is not a de Polignac number, because 12069439 - 2⁷ = 12069311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12069469) 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, 354967 + ... + 355000.

It is an arithmetic number, because the mean of its divisors is an integer number (3194856).

Almost surely, 2^12069439 is an apocalyptic number.

12069439 is a deficient number, since it is larger than the sum of its proper divisors (709985).

12069439 is an equidigital number, since it uses as much as digits as its factorization.

12069439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709984.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 12069439 is about 3474.1098140387. The cubic root of 12069439 is about 229.3835984125.

The spelling of 12069439 in words is "twelve million, sixty-nine thousand, four hundred thirty-nine".