12997346 has 16 divisors (see below), whose sum is σ = 20692800. Its totient is φ = 6109488.

The previous prime is 12997343. The next prime is 12997357. The reversal of 12997346 is 64379921.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12997343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320 + ... + 5108.

It is an arithmetic number, because the mean of its divisors is an integer number (1293300).

Almost surely, 2^12997346 is an apocalyptic number.

12997346 is a deficient number, since it is larger than the sum of its proper divisors (7695454).

12997346 is a wasteful number, since it uses less digits than its factorization.

12997346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4873.

The product of its digits is 81648, while the sum is 41.

The square root of 12997346 is about 3605.1832130975. The cubic root of 12997346 is about 235.1174665491.

The spelling of 12997346 in words is "twelve million, nine hundred ninety-seven thousand, three hundred forty-six".