12517620 has 24 divisors (see below), whose sum is σ = 35049504. Its totient is φ = 3338016.

The previous prime is 12517613. The next prime is 12517667. The reversal of 12517620 is 2671521.

12517620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104254 + ... + 104373.

It is an arithmetic number, because the mean of its divisors is an integer number (1460396).

Almost surely, 2^12517620 is an apocalyptic number.

12517620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12517620 is an abundant number, since it is smaller than the sum of its proper divisors (22531884).

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

12517620 is a wasteful number, since it uses less digits than its factorization.

12517620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208639 (or 208637 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 12517620 is about 3538.0248727221. The cubic root of 12517620 is about 232.1884368771.

The spelling of 12517620 in words is "twelve million, five hundred seventeen thousand, six hundred twenty".