12697308 has 54 divisors (see below), whose sum is σ = 34771464. Its totient is φ = 3904992.

The previous prime is 12697303. The next prime is 12697309. The reversal of 12697308 is 80379621.

It is a super-2 number, since 2×12697308² = 322443260893728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12697303) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5041 + ... + 7127.

It is an arithmetic number, because the mean of its divisors is an integer number (643916).

Almost surely, 2^12697308 is an apocalyptic number.

12697308 is a gapful number since it is divisible by the number (18) 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 12697308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17385732).

12697308 is an abundant number, since it is smaller than the sum of its proper divisors (22074156).

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

12697308 is a wasteful number, since it uses less digits than its factorization.

12697308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123 (or 2105 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 12697308 is about 3563.3282195161. The cubic root of 12697308 is about 233.2941693906.

The spelling of 12697308 in words is "twelve million, six hundred ninety-seven thousand, three hundred eight".