12703872 has 32 divisors (see below), whose sum is σ = 33745680. Its totient is φ = 4234496.

The previous prime is 12703871. The next prime is 12703883. The reversal of 12703872 is 27830721.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×12703872² = 322776727584768, which contains 22 as substring.

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 (12703871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16158 + ... + 16925.

Almost surely, 2^12703872 is an apocalyptic number.

12703872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12703872 is an abundant number, since it is smaller than the sum of its proper divisors (21041808).

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

12703872 is an equidigital number, since it uses as much as digits as its factorization.

12703872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33100 (or 33088 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 12703872 is about 3564.2491495405. The cubic root of 12703872 is about 233.3343637143.

The spelling of 12703872 in words is "twelve million, seven hundred three thousand, eight hundred seventy-two".