12997308 has 24 divisors (see below), whose sum is σ = 31306240. Its totient is φ = 4192560.

The previous prime is 12997297. The next prime is 12997337. The reversal of 12997308 is 80379921.

12997308 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) 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 7 ways as a sum of consecutive naturals, for example, 17098 + ... + 17841.

Almost surely, 2^12997308 is an apocalyptic number.

It is an amenable number.

12997308 is an abundant number, since it is smaller than the sum of its proper divisors (18308932).

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

12997308 is a wasteful number, since it uses less digits than its factorization.

12997308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34977 (or 34975 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 12997308 is about 3605.1779429038. The cubic root of 12997308 is about 235.1172374132.

The spelling of 12997308 in words is "twelve million, nine hundred ninety-seven thousand, three hundred eight".