12684500 has 48 divisors (see below), whose sum is σ = 28933632. Its totient is φ = 4848800.

The previous prime is 12684493. The next prime is 12684517. The reversal of 12684500 is 548621.

12684500 = T₄₉ + T₅₀ + ... + T₄₂₃.

It is a self number, because there is not a number n which added to its sum of digits gives 12684500.

It is a congruent number.

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, 10949 + ... + 12051.

It is an arithmetic number, because the mean of its divisors is an integer number (602784).

Almost surely, 2^12684500 is an apocalyptic number.

12684500 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 12684500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14466816).

12684500 is an abundant number, since it is smaller than the sum of its proper divisors (16249132).

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

12684500 is a wasteful number, since it uses less digits than its factorization.

12684500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145 (or 1133 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 12684500 is about 3561.5305698534. The cubic root of 12684500 is about 233.2157003435.

The spelling of 12684500 in words is "twelve million, six hundred eighty-four thousand, five hundred".