12684700 has 36 divisors (see below), whose sum is σ = 31459792. Its totient is φ = 4348800.

The previous prime is 12684677. The next prime is 12684701. The reversal of 12684700 is 748621.

It is a super-2 number, since 2×12684700² = 321803228180000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12684701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8361 + ... + 9760.

Almost surely, 2^12684700 is an apocalyptic number.

12684700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12684700 is an abundant number, since it is smaller than the sum of its proper divisors (18775092).

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

12684700 is a wasteful number, since it uses less digits than its factorization.

12684700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18142 (or 18135 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 12684700 is about 3561.5586475587. The cubic root of 12684700 is about 233.2169260624.

The spelling of 12684700 in words is "twelve million, six hundred eighty-four thousand, seven hundred".