12806508 has 96 divisors (see below), whose sum is σ = 37255680. Its totient is φ = 3363840.

The previous prime is 12806489. The next prime is 12806527. The reversal of 12806508 is 80560821.

12806508 is digitally balanced in base 2 and base 4, because in such bases 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 (12806489) and next prime (12806527).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28953 + ... + 29391.

It is an arithmetic number, because the mean of its divisors is an integer number (388080).

Almost surely, 2^12806508 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12806508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18627840).

12806508 is an abundant number, since it is smaller than the sum of its proper divisors (24449172).

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

12806508 is a wasteful number, since it uses less digits than its factorization.

12806508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 12806508 is about 3578.6181690703. The cubic root of 12806508 is about 233.9610571471.

The spelling of 12806508 in words is "twelve million, eight hundred six thousand, five hundred eight".