12223697 has 4 divisors (see below), whose sum is σ = 12942756. Its totient is φ = 11504640.

The previous prime is 12223693. The next prime is 12223709. The reversal of 12223697 is 79632221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79632221 = 257 ⋅309853.

It can be written as a sum of positive squares in 2 ways, for example, as 9634816 + 2588881 = 3104^2 + 1609^2 .

It is a cyclic number.

It is not a de Polignac number, because 12223697 - 2² = 12223693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12223693) by changing a digit.

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, 359504 + ... + 359537.

It is an arithmetic number, because the mean of its divisors is an integer number (3235689).

Almost surely, 2^12223697 is an apocalyptic number.

12223697 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12223697 is a deficient number, since it is larger than the sum of its proper divisors (719059).

12223697 is an equidigital number, since it uses as much as digits as its factorization.

12223697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719058.

The product of its digits is 9072, while the sum is 32.

The square root of 12223697 is about 3496.2404093540. The cubic root of 12223697 is about 230.3567054810.

The spelling of 12223697 in words is "twelve million, two hundred twenty-three thousand, six hundred ninety-seven".