12306997 has 16 divisors (see below), whose sum is σ = 13554432. Its totient is φ = 11128320.

The previous prime is 12306979. The next prime is 12307007. The reversal of 12306997 is 79960321.

It is a cyclic number.

It is not a de Polignac number, because 12306997 - 2¹¹ = 12304949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12306967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58222 + ... + 58432.

It is an arithmetic number, because the mean of its divisors is an integer number (847152).

Almost surely, 2^12306997 is an apocalyptic number.

12306997 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12306997 is a deficient number, since it is larger than the sum of its proper divisors (1247435).

12306997 is a wasteful number, since it uses less digits than its factorization.

12306997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 12306997 is about 3508.1329792355. The cubic root of 12306997 is about 230.8787867530.

The spelling of 12306997 in words is "twelve million, three hundred six thousand, nine hundred ninety-seven".