12897792 has 100 divisors (see below), whose sum is σ = 38620296. Its totient is φ = 4285440.

The previous prime is 12897769. The next prime is 12897803. The reversal of 12897792 is 29779821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 41317 + ... + 41627.

Almost surely, 2^12897792 is an apocalyptic number.

12897792 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 12897792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19310148).

12897792 is an abundant number, since it is smaller than the sum of its proper divisors (25722504).

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

12897792 is an frugal number, since it uses more digits than its factorization.

12897792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 316 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 12897792 is about 3591.3496070419. The cubic root of 12897792 is about 234.5156282442.

It can be divided in two parts, 12897 and 792, that added together give a square (13689 = 117²).

The spelling of 12897792 in words is "twelve million, eight hundred ninety-seven thousand, seven hundred ninety-two".