12568921 has 8 divisors (see below), whose sum is σ = 12829824. Its totient is φ = 12310560.

The previous prime is 12568901. The next prime is 12568931. The reversal of 12568921 is 12986521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12568921 - 2⁷ = 12568793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12568901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11676 + ... + 12706.

It is an arithmetic number, because the mean of its divisors is an integer number (1603728).

Almost surely, 2^12568921 is an apocalyptic number.

It is an amenable number.

12568921 is a deficient number, since it is larger than the sum of its proper divisors (260903).

12568921 is a wasteful number, since it uses less digits than its factorization.

12568921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271.

The product of its digits is 8640, while the sum is 34.

The square root of 12568921 is about 3545.2674088142. The cubic root of 12568921 is about 232.5051974018.

It can be divided in two parts, 125 and 68921, that multiplied together give a cube (8615125 = 205³).

The spelling of 12568921 in words is "twelve million, five hundred sixty-eight thousand, nine hundred twenty-one".