13223973 has 12 divisors (see below), whose sum is σ = 20510880. Its totient is φ = 7556472.

The previous prime is 13223957. The next prime is 13224037. The reversal of 13223973 is 37932231.

It is not a de Polignac number, because 13223973 - 2⁴ = 13223957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13223973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44833 + ... + 45126.

It is an arithmetic number, because the mean of its divisors is an integer number (1709240).

Almost surely, 2^13223973 is an apocalyptic number.

It is an amenable number.

13223973 is a deficient number, since it is larger than the sum of its proper divisors (7286907).

13223973 is an equidigital number, since it uses as much as digits as its factorization.

13223973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89976 (or 89969 counting only the distinct ones).

The product of its digits is 6804, while the sum is 30.

The square root of 13223973 is about 3636.4781038802. The cubic root of 13223973 is about 236.4761346445.

It can be divided in two parts, 13223 and 973, that added together give a triangular number (14196 = T₁₆₈).

The spelling of 13223973 in words is "thirteen million, two hundred twenty-three thousand, nine hundred seventy-three".