12817392 has 80 divisors (see below), whose sum is σ = 38902272. Its totient is φ = 3559680.

The previous prime is 12817373. The next prime is 12817421. The reversal of 12817392 is 29371821.

12817392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11917 + ... + 12947.

Almost surely, 2^12817392 is an apocalyptic number.

12817392 is a gapful number since it is divisible by the number (12) 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 12817392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19451136).

12817392 is an abundant number, since it is smaller than the sum of its proper divisors (26084880).

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

12817392 is a wasteful number, since it uses less digits than its factorization.

12817392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086 (or 1080 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 12817392 is about 3580.1385448052. The cubic root of 12817392 is about 234.0273180175.

The spelling of 12817392 in words is "twelve million, eight hundred seventeen thousand, three hundred ninety-two".