12089479 has 2 divisors, whose sum is σ = 12089480. Its totient is φ = 12089478.

The previous prime is 12089447. The next prime is 12089489. The reversal of 12089479 is 97498021.

12089479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (97498021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12089479 - 2⁵ = 12089447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12089489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6044739 + 6044740.

It is an arithmetic number, because the mean of its divisors is an integer number (6044740).

Almost surely, 2^12089479 is an apocalyptic number.

12089479 is a deficient number, since it is larger than the sum of its proper divisors (1).

12089479 is an equidigital number, since it uses as much as digits as its factorization.

12089479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 12089479 is about 3476.9928098862. The cubic root of 12089479 is about 229.5104837761.

The spelling of 12089479 in words is "twelve million, eighty-nine thousand, four hundred seventy-nine".