12657000 has 64 divisors (see below), whose sum is σ = 39499200. Its totient is φ = 3374400.

The previous prime is 12656939. The next prime is 12657011. The reversal of 12657000 is 75621.

It is a zygodrome in base 5.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 891 + ... + 5109.

It is an arithmetic number, because the mean of its divisors is an integer number (617175).

Almost surely, 2^12657000 is an apocalyptic number.

12657000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12657000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19749600).

12657000 is an abundant number, since it is smaller than the sum of its proper divisors (26842200).

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

12657000 is a wasteful number, since it uses less digits than its factorization.

12657000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243 (or 4229 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 12657000 is about 3557.6677753832. The cubic root of 12657000 is about 233.0470411630.

The spelling of 12657000 in words is "twelve million, six hundred fifty-seven thousand".