12378579 has 8 divisors (see below), whose sum is σ = 17037312. Its totient is φ = 7986120.

The previous prime is 12378571. The next prime is 12378599. The reversal of 12378579 is 97587321.

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

It is not a de Polignac number, because 12378579 - 2³ = 12378571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12378579.

It is not an unprimeable number, because it can be changed into a prime (12378571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66459 + ... + 66644.

It is an arithmetic number, because the mean of its divisors is an integer number (2129664).

Almost surely, 2^12378579 is an apocalyptic number.

12378579 is a deficient number, since it is larger than the sum of its proper divisors (4658733).

12378579 is a wasteful number, since it uses less digits than its factorization.

12378579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133137.

The product of its digits is 105840, while the sum is 42.

The square root of 12378579 is about 3518.3204800018. The cubic root of 12378579 is about 231.3255468777.

The spelling of 12378579 in words is "twelve million, three hundred seventy-eight thousand, five hundred seventy-nine".