12917412 has 36 divisors (see below), whose sum is σ = 33781020. Its totient is φ = 4156992.

The previous prime is 12917389. The next prime is 12917431. The reversal of 12917412 is 21471921.

It can be written as a sum of positive squares in 2 ways, for example, as 6687396 + 6230016 = 2586^2 + 2496^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5143 + ... + 7230.

Almost surely, 2^12917412 is an apocalyptic number.

12917412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12917412 is an abundant number, since it is smaller than the sum of its proper divisors (20863608).

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

12917412 is a wasteful number, since it uses less digits than its factorization.

12917412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12412 (or 12407 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 12917412 is about 3594.0801326626. The cubic root of 12917412 is about 234.6344823214.

The spelling of 12917412 in words is "twelve million, nine hundred seventeen thousand, four hundred twelve".