12812393 has 8 divisors (see below), whose sum is σ = 14428416. Its totient is φ = 11271600.

The previous prime is 12812389. The next prime is 12812411. The reversal of 12812393 is 39321821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12812393 - 2² = 12812389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12812333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18446 + ... + 19127.

It is an arithmetic number, because the mean of its divisors is an integer number (1803552).

Almost surely, 2^12812393 is an apocalyptic number.

It is an amenable number.

12812393 is a deficient number, since it is larger than the sum of its proper divisors (1616023).

12812393 is a wasteful number, since it uses less digits than its factorization.

12812393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37615.

The product of its digits is 2592, while the sum is 29.

The square root of 12812393 is about 3579.4403193796. The cubic root of 12812393 is about 233.9968891884.

It can be divided in two parts, 128 and 12393, that added together give a palindrome (12521).

The spelling of 12812393 in words is "twelve million, eight hundred twelve thousand, three hundred ninety-three".