12676521 has 24 divisors (see below), whose sum is σ = 19974816. Its totient is φ = 7088640.

The previous prime is 12676493. The next prime is 12676549. The reversal of 12676521 is 12567621.

12676521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12676493) and next prime (12676549).

It is not a de Polignac number, because 12676521 - 2⁶ = 12676457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12676571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4441 + ... + 6713.

It is an arithmetic number, because the mean of its divisors is an integer number (832284).

Almost surely, 2^12676521 is an apocalyptic number.

12676521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12676521 is a deficient number, since it is larger than the sum of its proper divisors (7298295).

12676521 is a wasteful number, since it uses less digits than its factorization.

12676521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313 (or 2300 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 12676521 is about 3560.4102291730. The cubic root of 12676521 is about 233.1667897732.

Subtracting from 12676521 its reverse (12567621), we obtain a square (108900 = 330²).

The spelling of 12676521 in words is "twelve million, six hundred seventy-six thousand, five hundred twenty-one".