12647000 has 32 divisors (see below), whose sum is σ = 29596320. Its totient is φ = 5058400.

The previous prime is 12646981. The next prime is 12647003. The reversal of 12647000 is 74621.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12647003) 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 7 ways as a sum of consecutive naturals, for example, 5324 + ... + 7323.

It is an arithmetic number, because the mean of its divisors is an integer number (924885).

Almost surely, 2^12647000 is an apocalyptic number.

12647000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12647000 is an abundant number, since it is smaller than the sum of its proper divisors (16949320).

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

12647000 is a wasteful number, since it uses less digits than its factorization.

12647000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12668 (or 12654 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12647000 is about 3556.2620825805. The cubic root of 12647000 is about 232.9856499847.

The spelling of 12647000 in words is "twelve million, six hundred forty-seven thousand".