12717620 has 24 divisors (see below), whose sum is σ = 27869184. Its totient is φ = 4865696.

The previous prime is 12717619. The next prime is 12717623. The reversal of 12717620 is 2671721.

It is a self number, because there is not a number n which added to its sum of digits gives 12717620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12717623) 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, 13364 + ... + 14283.

It is an arithmetic number, because the mean of its divisors is an integer number (1161216).

Almost surely, 2^12717620 is an apocalyptic number.

12717620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12717620 is an abundant number, since it is smaller than the sum of its proper divisors (15151564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12717620 is a wasteful number, since it uses less digits than its factorization.

12717620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27679 (or 27677 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 12717620 is about 3566.1772249848. The cubic root of 12717620 is about 233.4185040548.

The spelling of 12717620 in words is "twelve million, seven hundred seventeen thousand, six hundred twenty".