12620871 has 12 divisors (see below), whose sum is σ = 18261048. Its totient is φ = 8399664.

The previous prime is 12620843. The next prime is 12620891. The reversal of 12620871 is 17802621.

It is not a de Polignac number, because 12620871 - 2⁹ = 12620359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12620831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9196 + ... + 10478.

It is an arithmetic number, because the mean of its divisors is an integer number (1521754).

Almost surely, 2^12620871 is an apocalyptic number.

12620871 is a deficient number, since it is larger than the sum of its proper divisors (5640177).

12620871 is a wasteful number, since it uses less digits than its factorization.

12620871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382 (or 2379 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 12620871 is about 3552.5865225213. The cubic root of 12620871 is about 232.8250880781.

The spelling of 12620871 in words is "twelve million, six hundred twenty thousand, eight hundred seventy-one".