12078579 has 4 divisors (see below), whose sum is σ = 16104776. Its totient is φ = 8052384.

The previous prime is 12078569. The next prime is 12078581. The reversal of 12078579 is 97587021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12078579 - 2⁸ = 12078323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12078569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2013094 + ... + 2013099.

It is an arithmetic number, because the mean of its divisors is an integer number (4026194).

Almost surely, 2^12078579 is an apocalyptic number.

12078579 is a deficient number, since it is larger than the sum of its proper divisors (4026197).

12078579 is an equidigital number, since it uses as much as digits as its factorization.

12078579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4026196.

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 12078579 is about 3475.4250099808. The cubic root of 12078579 is about 229.4414866894.

The spelling of 12078579 in words is "twelve million, seventy-eight thousand, five hundred seventy-nine".