12479709 has 16 divisors (see below), whose sum is σ = 18385920. Its totient is φ = 7466160.

The previous prime is 12479707. The next prime is 12479711. The reversal of 12479709 is 90797421.

It is an interprime number because it is at equal distance from previous prime (12479707) and next prime (12479711).

It is not a de Polignac number, because 12479709 - 2¹ = 12479707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12479707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214 + ... + 5000.

It is an arithmetic number, because the mean of its divisors is an integer number (1149120).

Almost surely, 2^12479709 is an apocalyptic number.

It is an amenable number.

12479709 is a deficient number, since it is larger than the sum of its proper divisors (5906211).

12479709 is a wasteful number, since it uses less digits than its factorization.

12479709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4880.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 12479709 is about 3532.6631597139. The cubic root of 12479709 is about 231.9537970319.

The spelling of 12479709 in words is "twelve million, four hundred seventy-nine thousand, seven hundred nine".