12569897 has 4 divisors (see below), whose sum is σ = 12635220. Its totient is φ = 12504576.

The previous prime is 12569873. The next prime is 12569929. The reversal of 12569897 is 79896521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1948816 + 10621081 = 1396^2 + 3259^2 .

It is a cyclic number.

It is not a de Polignac number, because 12569897 - 2⁶ = 12569833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12569807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32372 + ... + 32757.

It is an arithmetic number, because the mean of its divisors is an integer number (3158805).

Almost surely, 2^12569897 is an apocalyptic number.

It is an amenable number.

12569897 is a deficient number, since it is larger than the sum of its proper divisors (65323).

12569897 is an equidigital number, since it uses as much as digits as its factorization.

12569897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65322.

The product of its digits is 272160, while the sum is 47.

The square root of 12569897 is about 3545.4050544331. The cubic root of 12569897 is about 232.5112153992.

The spelling of 12569897 in words is "twelve million, five hundred sixty-nine thousand, eight hundred ninety-seven".