12697224 has 16 divisors (see below), whose sum is σ = 31743120. Its totient is φ = 4232400.

The previous prime is 12697207. The next prime is 12697261. The reversal of 12697224 is 42279621.

It is a super-2 number, since 2×12697224² = 322438994612352, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264502 + ... + 264549.

It is an arithmetic number, because the mean of its divisors is an integer number (1983945).

Almost surely, 2^12697224 is an apocalyptic number.

It is an amenable number.

12697224 is an abundant number, since it is smaller than the sum of its proper divisors (19045896).

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

12697224 is a wasteful number, since it uses less digits than its factorization.

12697224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529060 (or 529056 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 12697224 is about 3563.3164327632. The cubic root of 12697224 is about 233.2936549311.

It can be divided in two parts, 12697 and 224, that added together give a palindrome (12921).

The spelling of 12697224 in words is "twelve million, six hundred ninety-seven thousand, two hundred twenty-four".