12571897 has 16 divisors (see below), whose sum is σ = 14172480. Its totient is φ = 11074752.

The previous prime is 12571883. The next prime is 12571913. The reversal of 12571897 is 79817521.

It is a de Polignac number, because none of the positive numbers 2^k-12571897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12571817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28158 + ... + 28600.

It is an arithmetic number, because the mean of its divisors is an integer number (885780).

Almost surely, 2^12571897 is an apocalyptic number.

It is an amenable number.

12571897 is a deficient number, since it is larger than the sum of its proper divisors (1600583).

12571897 is a wasteful number, since it uses less digits than its factorization.

12571897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552.

The product of its digits is 35280, while the sum is 40.

The square root of 12571897 is about 3545.6870984338. The cubic root of 12571897 is about 232.5235463878.

The spelling of 12571897 in words is "twelve million, five hundred seventy-one thousand, eight hundred ninety-seven".