12117479 has 8 divisors (see below), whose sum is σ = 13443840. Its totient is φ = 10828600.

The previous prime is 12117473. The next prime is 12117491. The reversal of 12117479 is 97471121.

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 12117479 - 2¹⁶ = 12051943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12117473) 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, 8687 + ... + 9984.

It is an arithmetic number, because the mean of its divisors is an integer number (1680480).

Almost surely, 2^12117479 is an apocalyptic number.

12117479 is a deficient number, since it is larger than the sum of its proper divisors (1326361).

12117479 is a wasteful number, since it uses less digits than its factorization.

12117479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18741.

The product of its digits is 3528, while the sum is 32.

The square root of 12117479 is about 3481.0169491113. The cubic root of 12117479 is about 229.6875341046.

The spelling of 12117479 in words is "twelve million, one hundred seventeen thousand, four hundred seventy-nine".