13226973 has 4 divisors (see below), whose sum is σ = 17635968. Its totient is φ = 8817980.

The previous prime is 13226921. The next prime is 13227023. The reversal of 13226973 is 37962231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37962231 = 3 ⋅12654077.

It is a cyclic number.

It is not a de Polignac number, because 13226973 - 2¹² = 13222877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13226903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2204493 + ... + 2204498.

It is an arithmetic number, because the mean of its divisors is an integer number (4408992).

Almost surely, 2^13226973 is an apocalyptic number.

It is an amenable number.

13226973 is a deficient number, since it is larger than the sum of its proper divisors (4408995).

13226973 is an equidigital number, since it uses as much as digits as its factorization.

13226973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4408994.

The product of its digits is 13608, while the sum is 33.

The square root of 13226973 is about 3636.8905675041. The cubic root of 13226973 is about 236.4940156743.

The spelling of 13226973 in words is "thirteen million, two hundred twenty-six thousand, nine hundred seventy-three".