12472656 has 60 divisors (see below), whose sum is σ = 37488672. Its totient is φ = 3562944.

The previous prime is 12472643. The next prime is 12472657. The reversal of 12472656 is 65627421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12472657) 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, 300 + ... + 5003.

Almost surely, 2^12472656 is an apocalyptic number.

12472656 is a gapful number since it is divisible by the number (16) 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 12472656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18744336).

12472656 is an abundant number, since it is smaller than the sum of its proper divisors (25016016).

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

12472656 is a wasteful number, since it uses less digits than its factorization.

12472656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5328 (or 5315 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 12472656 is about 3531.6647632526. The cubic root of 12472656 is about 231.9100919952.

The spelling of 12472656 in words is "twelve million, four hundred seventy-two thousand, six hundred fifty-six".