12979347 has 16 divisors (see below), whose sum is σ = 18451872. Its totient is φ = 8087040.

The previous prime is 12979333. The next prime is 12979361. The reversal of 12979347 is 74397921.

12979347 is nontrivially palindromic in base 11.

It is an interprime number because it is at equal distance from previous prime (12979333) and next prime (12979361).

It is not a de Polignac number, because 12979347 - 2⁶ = 12979283 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12979299 and 12979308.

It is not an unprimeable number, because it can be changed into a prime (12979847) 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, 7197 + ... + 8817.

It is an arithmetic number, because the mean of its divisors is an integer number (1153242).

Almost surely, 2^12979347 is an apocalyptic number.

12979347 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12979347 is a deficient number, since it is larger than the sum of its proper divisors (5472525).

12979347 is a wasteful number, since it uses less digits than its factorization.

12979347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798.

The product of its digits is 95256, while the sum is 42.

The square root of 12979347 is about 3602.6860812455. The cubic root of 12979347 is about 235.0088845290.

The spelling of 12979347 in words is "twelve million, nine hundred seventy-nine thousand, three hundred forty-seven".