12862921 has 8 divisors (see below), whose sum is σ = 13406400. Its totient is φ = 12326160.

The previous prime is 12862901. The next prime is 12862933. The reversal of 12862921 is 12926821.

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

It is not a de Polignac number, because 12862921 - 2¹¹ = 12860873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12862901) 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, 2436 + ... + 5626.

It is an arithmetic number, because the mean of its divisors is an integer number (1675800).

Almost surely, 2^12862921 is an apocalyptic number.

It is an amenable number.

12862921 is a deficient number, since it is larger than the sum of its proper divisors (543479).

12862921 is a wasteful number, since it uses less digits than its factorization.

12862921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3359.

The product of its digits is 3456, while the sum is 31.

The square root of 12862921 is about 3586.4914610243. The cubic root of 12862921 is about 234.3040887936.

The spelling of 12862921 in words is "twelve million, eight hundred sixty-two thousand, nine hundred twenty-one".