12397073 has 4 divisors (see below), whose sum is σ = 13350708. Its totient is φ = 11443440.

The previous prime is 12397067. The next prime is 12397081. The reversal of 12397073 is 37079321.

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 508369 + 11888704 = 713^2 + 3448^2 .

It is a cyclic number.

It is not a de Polignac number, because 12397073 - 2⁴ = 12397057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12397093) 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, 476798 + ... + 476823.

It is an arithmetic number, because the mean of its divisors is an integer number (3337677).

Almost surely, 2^12397073 is an apocalyptic number.

12397073 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12397073 is a deficient number, since it is larger than the sum of its proper divisors (953635).

12397073 is an equidigital number, since it uses as much as digits as its factorization.

12397073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953634.

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 12397073 is about 3520.9477417309. The cubic root of 12397073 is about 231.4406921857.

The spelling of 12397073 in words is "twelve million, three hundred ninety-seven thousand, seventy-three".