12723210 has 32 divisors (see below), whose sum is σ = 33929280. Its totient is φ = 3392784.

The previous prime is 12723203. The next prime is 12723211. The reversal of 12723210 is 1232721.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12723211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23292 + ... + 23831.

It is an arithmetic number, because the mean of its divisors is an integer number (1060290).

Almost surely, 2^12723210 is an apocalyptic number.

12723210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12723210 is an abundant number, since it is smaller than the sum of its proper divisors (21206070).

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

12723210 is a wasteful number, since it uses less digits than its factorization.

12723210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47139 (or 47133 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 12723210 is about 3566.9608912911. The cubic root of 12723210 is about 233.4526985637.

Adding to 12723210 its reverse (1232721), we get a palindrome (13955931).

The spelling of 12723210 in words is "twelve million, seven hundred twenty-three thousand, two hundred ten".