13323973 has 4 divisors (see below), whose sum is σ = 14348908. Its totient is φ = 12299040.

The previous prime is 13323929. The next prime is 13323979. The reversal of 13323973 is 37932331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4809249 + 8514724 = 2193^2 + 2918^2 .

It is not a de Polignac number, because 13323973 - 2²¹ = 11226821 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 (13323979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512448 + ... + 512473.

It is an arithmetic number, because the mean of its divisors is an integer number (3587227).

Almost surely, 2^13323973 is an apocalyptic number.

13323973 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13323973 is a deficient number, since it is larger than the sum of its proper divisors (1024935).

13323973 is a wasteful number, since it uses less digits than its factorization.

13323973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024934.

The product of its digits is 10206, while the sum is 31.

The square root of 13323973 is about 3650.2017752448. The cubic root of 13323973 is about 237.0707177977.

The spelling of 13323973 in words is "thirteen million, three hundred twenty-three thousand, nine hundred seventy-three".