12897579 has 8 divisors (see below), whose sum is σ = 17213760. Its totient is φ = 8589896.

The previous prime is 12897569. The next prime is 12897583. The reversal of 12897579 is 97579821.

12897579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12897579 - 2¹² = 12893483 is a prime.

It is a super-2 number, since 2×12897579² = 332695088122482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12897529) 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, 3712 + ... + 6290.

It is an arithmetic number, because the mean of its divisors is an integer number (2151720).

Almost surely, 2^12897579 is an apocalyptic number.

12897579 is a deficient number, since it is larger than the sum of its proper divisors (4316181).

12897579 is a wasteful number, since it uses less digits than its factorization.

12897579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249.

The product of its digits is 317520, while the sum is 48.

The square root of 12897579 is about 3591.3199523295. The cubic root of 12897579 is about 234.5143372712.

The spelling of 12897579 in words is "twelve million, eight hundred ninety-seven thousand, five hundred seventy-nine".