12947379 has 8 divisors (see below), whose sum is σ = 18171840. Its totient is φ = 8177256.

The previous prime is 12947351. The next prime is 12947381. The reversal of 12947379 is 97374921.

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

It is not a de Polignac number, because 12947379 - 2⁹ = 12946867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12947379.

It is not an unprimeable number, because it can be changed into a prime (12947329) 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, 113517 + ... + 113630.

It is an arithmetic number, because the mean of its divisors is an integer number (2271480).

Almost surely, 2^12947379 is an apocalyptic number.

12947379 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12947379 is a deficient number, since it is larger than the sum of its proper divisors (5224461).

12947379 is a wasteful number, since it uses less digits than its factorization.

12947379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227169.

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

The square root of 12947379 is about 3598.2466563592. The cubic root of 12947379 is about 234.8157844081.

The spelling of 12947379 in words is "twelve million, nine hundred forty-seven thousand, three hundred seventy-nine".