12897572 has 12 divisors (see below), whose sum is σ = 23552256. Its totient is φ = 6168360.

The previous prime is 12897569. The next prime is 12897583. The reversal of 12897572 is 27579821.

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, 70004 + ... + 70187.

It is an arithmetic number, because the mean of its divisors is an integer number (1962688).

Almost surely, 2^12897572 is an apocalyptic number.

It is an amenable number.

12897572 is a deficient number, since it is larger than the sum of its proper divisors (10654684).

12897572 is a wasteful number, since it uses less digits than its factorization.

12897572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140218 (or 140216 counting only the distinct ones).

The product of its digits is 70560, while the sum is 41.

The square root of 12897572 is about 3591.3189777573. The cubic root of 12897572 is about 234.5142948446.

The spelling of 12897572 in words is "twelve million, eight hundred ninety-seven thousand, five hundred seventy-two".