12897322 has 8 divisors (see below), whose sum is σ = 20484036. Its totient is φ = 6069312.

The previous prime is 12897301. The next prime is 12897331. The reversal of 12897322 is 22379821.

It can be written as a sum of positive squares in 2 ways, for example, as 12173121 + 724201 = 3489^2 + 851^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 379333 = 12897322 / (1 + 2 + 8 + 9 + 7 + 3 + 2 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189633 + ... + 189700.

Almost surely, 2^12897322 is an apocalyptic number.

12897322 is a deficient number, since it is larger than the sum of its proper divisors (7586714).

12897322 is a wasteful number, since it uses less digits than its factorization.

12897322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379352.

The product of its digits is 12096, while the sum is 34.

The square root of 12897322 is about 3591.2841714351. The cubic root of 12897322 is about 234.5127795994.

The spelling of 12897322 in words is "twelve million, eight hundred ninety-seven thousand, three hundred twenty-two".