12897573 has 12 divisors (see below), whose sum is σ = 18622080. Its totient is φ = 7936656.

The previous prime is 12897569. The next prime is 12897583. The reversal of 12897573 is 37579821.

It is not a de Polignac number, because 12897573 - 2² = 12897569 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12897583) 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 11 ways as a sum of consecutive naturals, for example, 12213 + ... + 13226.

It is an arithmetic number, because the mean of its divisors is an integer number (1551840).

Almost surely, 2^12897573 is an apocalyptic number.

12897573 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12897573 is a deficient number, since it is larger than the sum of its proper divisors (5724507).

12897573 is a wasteful number, since it uses less digits than its factorization.

12897573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25468 (or 25455 counting only the distinct ones).

The product of its digits is 105840, while the sum is 42.

The square root of 12897573 is about 3591.3191169819. The cubic root of 12897573 is about 234.5143009056.

The spelling of 12897573 in words is "twelve million, eight hundred ninety-seven thousand, five hundred seventy-three".