12479009 has 8 divisors (see below), whose sum is σ = 12797352. Its totient is φ = 12163840.

The previous prime is 12478993. The next prime is 12479011. The reversal of 12479009 is 90097421.

12479009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3598609 + 8880400 = 1897^2 + 2980^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12479009 - 2⁴ = 12478993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12479039) 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, 8489 + ... + 9849.

It is an arithmetic number, because the mean of its divisors is an integer number (1599669).

Almost surely, 2^12479009 is an apocalyptic number.

It is an amenable number.

12479009 is a deficient number, since it is larger than the sum of its proper divisors (318343).

12479009 is a wasteful number, since it uses less digits than its factorization.

12479009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 12479009 is about 3532.5640829290. The cubic root of 12479009 is about 231.9494601067.

The spelling of 12479009 in words is "twelve million, four hundred seventy-nine thousand, nine".