12912972 has 24 divisors (see below), whose sum is σ = 30230592. Its totient is φ = 4290000.

The previous prime is 12912971. The next prime is 12913003. The reversal of 12912972 is 27921921.

It is not an unprimeable number, because it can be changed into a prime (12912971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2347 + ... + 5597.

It is an arithmetic number, because the mean of its divisors is an integer number (1259608).

Almost surely, 2^12912972 is an apocalyptic number.

12912972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12912972 is an abundant number, since it is smaller than the sum of its proper divisors (17317620).

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

12912972 is a wasteful number, since it uses less digits than its factorization.

12912972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589 (or 3587 counting only the distinct ones).

The product of its digits is 4536, while the sum is 33.

The square root of 12912972 is about 3593.4623971874. The cubic root of 12912972 is about 234.6075962216.

The spelling of 12912972 in words is "twelve million, nine hundred twelve thousand, nine hundred seventy-two".